diff --git a/src/eva2/client/EvAClient.java b/src/eva2/client/EvAClient.java
index 129476da..61c6ad02 100644
--- a/src/eva2/client/EvAClient.java
+++ b/src/eva2/client/EvAClient.java
@@ -63,11 +63,11 @@ import eva2.gui.LogPanel;
 import eva2.server.EvAServer;
 import eva2.server.go.InterfaceGOParameters;
 import eva2.server.modules.AbstractModuleAdapter;
+import eva2.server.modules.GOParameters;
 import eva2.server.modules.GenericModuleAdapter;
 import eva2.server.modules.ModuleAdapter;
 import eva2.server.stat.AbstractStatistics;
 import eva2.server.stat.InterfaceStatisticsParameter;
-import eva2.server.stat.StatsParameter;
 import eva2.tools.BasicResourceLoader;
 import eva2.tools.EVAERROR;
 import eva2.tools.EVAHELP;
@@ -86,6 +86,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	public static boolean TRACE = false;
 
 	public JEFrame m_Frame;
+	Runnable initRnbl = null;
 
 	private EvAComAdapter m_ComAdapter;
 	private transient JMenuBar 		m_barMenu;
@@ -148,7 +149,9 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	/**
 	 * Constructor of GUI of EvA2.
 	 * Works as client for the EvA2 server.
-	 *
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
+	 * 
 	 */
 	public EvAClient(final String hostName) {
 		this(hostName, null, false, false);
@@ -156,6 +159,8 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	
 	/**
 	 * A constructor. Splash screen is optional, Gui is activated, no parent window.
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
 	 * 
 	 * @see #EvAClient(String, Window, String, boolean, boolean, boolean)
 	 * @param hostName
@@ -164,11 +169,13 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	 * @param nosplash
 	 */
 	public EvAClient(final String hostName, final String paramsFile, boolean autorun, boolean nosplash) {
-		this(hostName, null, paramsFile, autorun, nosplash, false);
+		this(hostName, null, paramsFile, null, autorun, nosplash, false);
 	}
 	
 	/**
 	 * A constructor with optional spash screen.
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
 	 * @see #EvAClient(String, String, boolean, boolean)
 	 * 
 	 * @param hostName
@@ -180,7 +187,26 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	}
 	
 	/**
-	 * A constructor with optional spash screen.
+	 * A constructor with optional splash screen.
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
+	 * 
+	 * @see #EvAClient(String, String, boolean, boolean)
+	 * @param hostName
+	 * @param paramsFile
+	 * @param autorun
+	 * @param noSplash
+	 * @param noGui
+	 */
+	public EvAClient(final String hostName, String paramsFile, boolean autorun, boolean noSplash, boolean noGui) {
+		this(hostName, null, paramsFile, null, autorun, noSplash, noGui);
+	}
+	
+	/**
+	 * A constructor with optional splash screen.
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
+	 * 
 	 * @see #EvAClient(String, String, boolean, boolean)
 	 * 
 	 * @param hostName
@@ -189,11 +215,17 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	 * @param noSplash
 	 * @param noGui
 	 */
-	public EvAClient(final String hostName, String paramsFile, boolean autorun, boolean noSplash, boolean noGui) {
-		this(hostName, null, paramsFile, autorun, noSplash, noGui);
+	public EvAClient(final String hostName, InterfaceGOParameters goParams, boolean autorun, boolean noSplash, boolean noGui) {
+		this(hostName, null, null, goParams, autorun, noSplash, noGui);
 	}
+	
 	/**
-	 * Constructor of GUI of EvA2. Works as client for the EvA2 server.
+	 * Constructor of GUI of EvA2. Works as client for the EvA2 server. GO parameters may be
+	 * loaded from a file (paramsFile) or given directly as a java instance. Both may be null
+	 * to start with standard parameters. If both are non null, the java instance has the
+	 * higher priority.
+	 * Note that the EvAClient initialized multi-threaded for efficiency. Use {@link #awaitGuiInitialized()}
+	 * to await full initialization if necessary.
 	 *
 	 * @param hostName
 	 * @param parent
@@ -202,8 +234,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	 * @param noSplash
 	 * @param noGui
 	 */
-
-	public EvAClient(final String hostName, final Window parent, final String paramsFile, final boolean autorun, final boolean noSplash, final boolean noGui) {
+	public EvAClient(final String hostName, final Window parent, final String paramsFile, final InterfaceGOParameters goParams, final boolean autorun, final boolean noSplash, final boolean noGui) {
 		final SplashScreenShell fSplashScreen = new SplashScreenShell(EvAInfo.splashLocation);
 
 		// preload some classes (into system cache) in a parallel thread
@@ -224,31 +255,53 @@ public class EvAClient implements RemoteStateListener, Serializable {
 		
 		m_ComAdapter = EvAComAdapter.getInstance();
 
-		SwingUtilities.invokeLater( new Runnable() {
+		SwingUtilities.invokeLater( initRnbl = new Runnable() {
 			public void run(){
-				long startTime = System.currentTimeMillis();
-				init(hostName, paramsFile, parent); // this takes a bit
-				long wait = System.currentTimeMillis() - startTime;
-				if (!autorun) {
-					if (!noSplash) try {
-						// if splashScreenTime has not passed, sleep some more 
-						if (wait < splashScreenTime) Thread.sleep(splashScreenTime - wait);
-					} catch (Exception e) {}
-				} else {
-					if (!withGUI && (currentModuleAdapter instanceof GenericModuleAdapter)) {
-						// do not save new parameters for an autorun without GUI - they werent changed manually anyways.
-						((GenericModuleAdapter)currentModuleAdapter).getStatistics().setSaveParams(false);
-						System.out.println("Autorun without GUI - not saving statistics parameters...");
+				synchronized (this) {
+					long startTime = System.currentTimeMillis();
+					init(hostName, paramsFile, goParams, parent); // this takes a bit
+
+					long wait = System.currentTimeMillis() - startTime;
+					if (!autorun) {
+						if (!noSplash) try {
+							// if splashScreenTime has not passed, sleep some more 
+							if (wait < splashScreenTime) Thread.sleep(splashScreenTime - wait);
+						} catch (Exception e) {}
+					} else {
+						if (!withGUI && (currentModuleAdapter instanceof GenericModuleAdapter)) {
+							// do not save new parameters for an autorun without GUI - they werent changed manually anyways.
+							((GenericModuleAdapter)currentModuleAdapter).getStatistics().setSaveParams(false);
+							System.out.println("Autorun without GUI - not saving statistics parameters...");
+						}
+						if (withGUI) frmMkr.onUserStart();
+						else currentModuleAdapter.startOpt();
 					}
-					if (withGUI) frmMkr.onUserStart();
-					else currentModuleAdapter.startOpt();
+					// close splash screen
+					if (!noSplash && withGUI) fSplashScreen.dispose();
+					notify();
 				}
-				// close splash screen
-				if (!noSplash && withGUI) fSplashScreen.dispose();
-		      }			
+			}
 		});
 	}
 	
+	/**
+	 * Since the constructor runs multi-threaded for efficiency, this method
+	 * may be called to await the full initialization of a client instance.
+	 * As soon as it returns, the EvAClient GUI is fully initialized. 
+	 */
+	public void awaitGuiInitialized() {
+		if (initRnbl!=null) {
+			synchronized (initRnbl) {
+				try {
+					initRnbl.wait();
+					initRnbl=null;
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+	
 	private void preloadClasses() {
 		ClassPreloader cp = new ClassPreloader( "eva2.server.go.strategies.InterfaceOptimizer", "eva2.server.go.problems.InterfaceOptimizationProblem", "eva2.server.go.InterfaceTerminator");
 		new Thread(cp).start();
@@ -270,7 +323,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	/**
 	 * Sets given hostname and tries to load GOParamsters from given file if non null.
 	 */
-	private void init(String hostName, String paramsFile, final Window parent) {
+	private void init(String hostName, String paramsFile, InterfaceGOParameters goParams, final Window parent) {
 		//EVA_EDITOR_PROPERTIES
 		useDefaultModule = EvAInfo.propDefaultModule();
 		
@@ -304,7 +357,10 @@ public class EvAClient implements RemoteStateListener, Serializable {
 			createActions();
 		}
 		if (useDefaultModule != null) {
-			loadModuleFromServer(useDefaultModule, paramsFile);//loadSpecificModule
+			// if goParams are not defined and a params file is defined
+			// try to load parameters from file 
+			if (goParams==null && (paramsFile!=null && (paramsFile.length()>0))) goParams = GOParameters.getInstance(paramsFile, false);
+			loadModuleFromServer(useDefaultModule, goParams);//loadSpecificModule
 		}
 		
 		if (withGUI) {
@@ -649,7 +705,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 	/**
 	 *
 	 */
-	private void loadModuleFromServer(String selectedModule, String paramsFile) {
+	private void loadModuleFromServer(String selectedModule, InterfaceGOParameters goParams) {
 		if (m_ComAdapter.getHostName() == null) {
 			System.err.println("error in loadModuleFromServer!");
 			return;
@@ -691,7 +747,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 		} else {
 			Serializer.storeString("lastmodule.ser", selectedModule);
 
-			loadSpecificModule(selectedModule, paramsFile);
+			loadSpecificModule(selectedModule, goParams);
 
 			if (withGUI) {
 				m_actHost.setEnabled(true);
@@ -735,11 +791,11 @@ public class EvAClient implements RemoteStateListener, Serializable {
 		} else return false;
 	}
 
-	private void loadSpecificModule(String selectedModule, String paramsFile) {
+	private void loadSpecificModule(String selectedModule, InterfaceGOParameters goParams) {
 		ModuleAdapter newModuleAdapter = null;
 		//
 		try {
-			newModuleAdapter = m_ComAdapter.getModuleAdapter(selectedModule, paramsFile, withGUI ? null : "EvA2");
+			newModuleAdapter = m_ComAdapter.getModuleAdapter(selectedModule, goParams, withGUI ? null : "EvA2");
 		} catch (Exception e) {
 			logMessage("Error while m_ComAdapter.GetModuleAdapter Host: " + e.getMessage());
 			e.printStackTrace();
@@ -755,7 +811,7 @@ public class EvAClient implements RemoteStateListener, Serializable {
 				System.setProperty("java.class.path", cp + System.getProperty("path.separator") + baseDir.getPath());
 				ReflectPackage.resetDynCP();
 				m_ComAdapter.updateLocalMainAdapter();
-				loadSpecificModule(selectedModule, paramsFile); // end recursive call! handle with care!
+				loadSpecificModule(selectedModule, goParams); // end recursive call! handle with care!
 				return;
 			}
 			showLoadModules = true;
diff --git a/src/eva2/client/EvAComAdapter.java b/src/eva2/client/EvAComAdapter.java
index 551f42f2..3b9b7028 100644
--- a/src/eva2/client/EvAComAdapter.java
+++ b/src/eva2/client/EvAComAdapter.java
@@ -20,6 +20,7 @@ import eva2.EvAInfo;
 import eva2.gui.LogPanel;
 import eva2.server.EvAMainAdapter;
 import eva2.server.EvAMainAdapterImpl;
+import eva2.server.go.InterfaceGOParameters;
 import eva2.server.modules.ModuleAdapter;
 import eva2.tools.jproxy.ComAdapter;
 import eva2.tools.jproxy.MainAdapter;
@@ -59,11 +60,11 @@ public class EvAComAdapter extends ComAdapter {
 	 * Creates the ModulAdapters RMI Object on the server
 	 * @return
 	 */
-	public ModuleAdapter getModuleAdapter(String selectedModuleName, String paramsFile, String noGuiStatsFile) {
+	public ModuleAdapter getModuleAdapter(String selectedModuleName, InterfaceGOParameters goParams, String noGuiStatsFile) {
 		ModuleAdapter newModuleAdapter;
 		if ((m_RMIServer == null) && isRunLocally()) {
 			//ret = evaAdapter.getModuleAdapter(Modul, hostAdd, this.m_MainAdapterClient);
-			newModuleAdapter = getLocalMainAdapter().getModuleAdapter(selectedModuleName, true, getHostName(), paramsFile, noGuiStatsFile, null);
+			newModuleAdapter = getLocalMainAdapter().getModuleAdapter(selectedModuleName, true, getHostName(), goParams, noGuiStatsFile, null);
 		} else {
 			newModuleAdapter = ((RMIConnectionEvA)getConnection(getHostName())).getModuleAdapter(selectedModuleName);
 			if (newModuleAdapter == null) System.err.println("RMI Error for getting ModuleAdapterObject : " + selectedModuleName);
diff --git a/src/eva2/gui/GenericObjectEditor.java b/src/eva2/gui/GenericObjectEditor.java
index 7c54b07d..9844c4c1 100644
--- a/src/eva2/gui/GenericObjectEditor.java
+++ b/src/eva2/gui/GenericObjectEditor.java
@@ -199,16 +199,42 @@ public class GenericObjectEditor implements PropertyEditor {
 	 * 
 	 * @param cls
 	 * @param hide
+	 * @return the original hidden states or null if an error occurred.
 	 */
-	public static void setHideAllProperties(Class<?> cls, boolean hide) {
+	public static boolean[] setHideAllProperties(Class<?> cls, boolean hide) {
 		try {
 			BeanInfo    bi      = Introspector.getBeanInfo(cls);
 			PropertyDescriptor[] props = bi.getPropertyDescriptors();
+			boolean[] orig = new boolean[props.length]; 
 			for (int i=0; i<props.length; i++) {
+				orig[i]=props[i].isHidden();
 				props[i].setHidden(hide);
 			}
+			return orig;
 		} catch (Exception e) {
 			System.err.println("exception in setHideProperty for " + cls.getName() + "/all : " + e.getMessage());
+			return null;
+		}
+	}
+	
+	public static void setHideProperties(Class<?> cls, boolean[] hideStates) {
+		if (hideStates!=null) {
+			BeanInfo bi;
+			try {
+				bi = Introspector.getBeanInfo(cls);
+			} catch (IntrospectionException e) {
+				System.err.println("Error on introspection of " + cls.getName() + ", " + e.getMessage());
+				e.printStackTrace();
+				return;
+			}
+			PropertyDescriptor[] props = bi.getPropertyDescriptors();
+			if (hideStates.length == props.length) {
+				for (int i=0; i<props.length; i++) {
+					props[i].setHidden(hideStates[i]);
+				}
+			} else {
+				System.err.println("Error, mismatching length of hide state array in GenericObjectEditor.setHideProperites");
+			}
 		}
 	}
 	
diff --git a/src/eva2/gui/PropertySheetPanel.java b/src/eva2/gui/PropertySheetPanel.java
index 07dfa615..5ecd4caa 100644
--- a/src/eva2/gui/PropertySheetPanel.java
+++ b/src/eva2/gui/PropertySheetPanel.java
@@ -204,7 +204,10 @@ public class PropertySheetPanel extends JPanel implements PropertyChangeListener
         // Look for a globalInfo method that returns a string
         // describing the target
         int methsFound = 0; // dont loop too long, so count until all found
-        GenericObjectEditor.setHideAllProperties(m_Target.getClass(), false);
+        // unhide all properties
+        // TODO this may be superfluous?
+        boolean[] hideStateBackup = GenericObjectEditor.setHideAllProperties(m_Target.getClass(), false); 
+//        System.out.println("hide stats were: " + BeanInspector.toString(hideStateBackup));
         for (int i = 0; i < m_Methods.length; i++) {
             String name = m_Methods[i].getDisplayName();
             Method meth = m_Methods[i].getMethod();
@@ -228,7 +231,9 @@ public class PropertySheetPanel extends JPanel implements PropertyChangeListener
             }
             if (methsFound == 3) break; // small speed-up
         } // end for (int i = 0; i < m_Methods.length; i++) {
-
+        // restore hide states of all properties
+        GenericObjectEditor.setHideProperties(m_Target.getClass(), hideStateBackup);
+        
         // Now lets search for the individual properties, their
         // values, views and editors...
         m_Editors   = new PropertyEditor[m_Properties.length];
diff --git a/src/eva2/server/EvAMainAdapter.java b/src/eva2/server/EvAMainAdapter.java
index ae08493b..c0adadc1 100644
--- a/src/eva2/server/EvAMainAdapter.java
+++ b/src/eva2/server/EvAMainAdapter.java
@@ -12,6 +12,7 @@ package eva2.server;
  * IMPORTS
  *==========================================================================*/
 
+import eva2.server.go.InterfaceGOParameters;
 import eva2.server.modules.ModuleAdapter;
 import eva2.tools.jproxy.MainAdapter;
 import eva2.tools.jproxy.MainAdapterClient;
@@ -33,7 +34,7 @@ public interface EvAMainAdapter extends MainAdapter {
   public ModuleAdapter getModuleAdapter(String selectedModuleName,
 		  boolean withoutRMI,
 		  String hostAddress,
-		  String paramsFile,
+		  InterfaceGOParameters goParams,
 		  String noGuiStatsFile,
 		  MainAdapterClient client);
 }
diff --git a/src/eva2/server/EvAMainAdapterImpl.java b/src/eva2/server/EvAMainAdapterImpl.java
index de152466..7704b95a 100644
--- a/src/eva2/server/EvAMainAdapterImpl.java
+++ b/src/eva2/server/EvAMainAdapterImpl.java
@@ -13,6 +13,7 @@ package eva2.server;
  * IMPORTS
  *==========================================================================*/
 import eva2.EvAInfo;
+import eva2.server.go.InterfaceGOParameters;
 import eva2.server.modules.ModuleAdapter;
 import eva2.tools.jproxy.MainAdapterClient;
 import eva2.tools.jproxy.MainAdapterImpl;
@@ -38,10 +39,10 @@ public class EvAMainAdapterImpl extends MainAdapterImpl implements EvAMainAdapte
     return getModuleAdapter(selectedModuleName, withoutRMI, hostAddress, null, null, client);
   }
   
- public ModuleAdapter getModuleAdapter(String selectedModuleName, boolean withoutRMI, String hostAddress, String paramsFile, String noGuiStatsFile, MainAdapterClient client) {
+ public ModuleAdapter getModuleAdapter(String selectedModuleName, boolean withoutRMI, String hostAddress, InterfaceGOParameters goParams,String noGuiStatsFile, MainAdapterClient client) {
    if (TRACE) System.out.println("MainAdapterImpl.GetModuleAdapter() for module " +
 		   selectedModuleName +" for Client: "+hostAddress+ " called");
-   return m_ModulServer.createModuleAdapter(selectedModuleName,client,withoutRMI,hostAddress, paramsFile, noGuiStatsFile);
+   return m_ModulServer.createModuleAdapter(selectedModuleName,client,withoutRMI,hostAddress, goParams, noGuiStatsFile);
  }
 }
 
diff --git a/src/eva2/server/ModuleServer.java b/src/eva2/server/ModuleServer.java
index 353f2739..b154a789 100644
--- a/src/eva2/server/ModuleServer.java
+++ b/src/eva2/server/ModuleServer.java
@@ -18,6 +18,7 @@ import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Properties;
 
+import eva2.server.go.InterfaceGOParameters;
 import eva2.server.modules.GOModuleAdapter;
 import eva2.server.modules.ModuleAdapter;
 import eva2.tools.EVAERROR;
@@ -125,7 +126,7 @@ public class ModuleServer {
 	 */
 	public ModuleAdapter createModuleAdapter(String selectedModuleName,
 			MainAdapterClient Client, boolean runWithoutRMI,
-			String hostAddress, String paramsFile, String noGuiLogFile) {
+			String hostAddress, InterfaceGOParameters goParams, String noGuiLogFile) {
 		m_ModuleAdapterCounter++;
 		String adapterName = new String("ERROR MODULADAPTER !!");
 		if (TRACE) {
@@ -163,8 +164,8 @@ public class ModuleServer {
 
 					Constructor<?>[] constructorArr = module.getConstructors();
 					// create a module instance
-					if ((paramsFile==null && noGuiLogFile==null) || !module.equals(GOModuleAdapter.class)) {
-						if (paramsFile!=null) System.err.println("Cant load params - no matching constructor found for " + adapterName + " (ModuleServer)");
+					if ((goParams==null && noGuiLogFile==null) || !module.equals(GOModuleAdapter.class)) {
+						if (goParams!=null) System.err.println("Cant set params - no matching constructor found for " + adapterName + " (ModuleServer)");
 						if (noGuiLogFile!=null) System.err.println("Cant deactivate GUI - no matching constructor found for " + adapterName + " (ModuleServer)");
 						Object[] Para = new Object[2];
 						Class<?> paramTypes[] = (constructorArr[0]).getParameterTypes();
@@ -174,7 +175,7 @@ public class ModuleServer {
 					} else {
 						Object[] Para = new Object[4];
 						Para[0] = (String)adapterName;
-						Para[1] = (String)paramsFile;
+						Para[1] = (InterfaceGOParameters)goParams;
 						Para[2] = (String)noGuiLogFile;
 						Para[3] = (MainAdapterClient)Client;
 						int constrIndex=0;
diff --git a/src/eva2/server/go/CrossoverInterface.java b/src/eva2/server/go/CrossoverInterface.java
deleted file mode 100644
index c1bdfa8f..00000000
--- a/src/eva2/server/go/CrossoverInterface.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package eva2.server.go;
-/*
- * Title:        EvA2
- * Description:
- * Copyright:    Copyright (c) 2003
- * Company:      University of Tuebingen, Computer Architecture
- * @author Holger Ulmer, Felix Streichert, Hannes Planatscher
- * @version:  $Revision: 306 $
- *            $Date: 2007-12-04 14:22:52 +0100 (Tue, 04 Dec 2007) $
- *            $Author: mkron $
- */
-/*==========================================================================*
- * IMPORTS
- *==========================================================================*/
-import eva2.server.stat.InterfaceStatistics;
-/*==========================================================================*
- * INTERFACE DECLARATION
- *==========================================================================*/
-/**
- *
- */
-public interface CrossoverInterface {
-  public void addListener(InterfaceStatistics e);
-}
\ No newline at end of file
diff --git a/src/eva2/server/go/GOStandaloneVersion.java b/src/eva2/server/go/GOStandaloneVersion.java
index 8e0dd807..b0d4373b 100644
--- a/src/eva2/server/go/GOStandaloneVersion.java
+++ b/src/eva2/server/go/GOStandaloneVersion.java
@@ -411,7 +411,7 @@ public class GOStandaloneVersion implements InterfaceGOStandalone, InterfacePopu
                 if (Thread.interrupted())
                     throw new InterruptedException();
                 // write header to file
-                this.writeToFile(" FitnessCalls\t Best\t Mean\t Worst \t" + BeanInspector.toString(this.m_GO.getProblem().getAdditionalFileStringHeader(this.m_GO.getOptimizer().getPopulation()), '\t', false));
+                this.writeToFile(" FitnessCalls\t Best\t Mean\t Worst \t" + BeanInspector.toString(this.m_GO.getProblem().getAdditionalFileStringHeader(), '\t', false));
                 if ((this.m_ContinueFlag) && (this.m_Backup != null)) {
                     this.m_RecentFC += this.m_Backup.getFunctionCalls();
                     this.m_GO.getOptimizer().getProblem().initProblem();
diff --git a/src/eva2/server/go/problems/AbstractMultiModalProblemKnown.java b/src/eva2/server/go/problems/AbstractMultiModalProblemKnown.java
index 51d2659f..eab4ee33 100644
--- a/src/eva2/server/go/problems/AbstractMultiModalProblemKnown.java
+++ b/src/eva2/server/go/problems/AbstractMultiModalProblemKnown.java
@@ -122,8 +122,8 @@ public abstract class AbstractMultiModalProblemKnown extends AbstractProblemDoub
 	public abstract double[] evalUnnormalized(double[] x);
 	
 	@Override
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		return ToolBox.appendArrays(new String[]{"numOptsFound", "maxPeakRatio"}, super.getAdditionalFileStringHeader(pop));
+	public String[] getAdditionalFileStringHeader() {
+		return ToolBox.appendArrays(new String[]{"numOptsFound", "maxPeakRatio"}, super.getAdditionalFileStringHeader());
 	}
 
 	@Override
diff --git a/src/eva2/server/go/problems/AbstractMultiObjectiveOptimizationProblem.java b/src/eva2/server/go/problems/AbstractMultiObjectiveOptimizationProblem.java
index 93972dfd..24b5edd5 100644
--- a/src/eva2/server/go/problems/AbstractMultiObjectiveOptimizationProblem.java
+++ b/src/eva2/server/go/problems/AbstractMultiObjectiveOptimizationProblem.java
@@ -489,8 +489,8 @@ public abstract class AbstractMultiObjectiveOptimizationProblem extends Abstract
     }
 
     @Override
-    public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		String[] superHd = super.getAdditionalFileStringHeader(pop);
+    public String[] getAdditionalFileStringHeader() {
+		String[] superHd = super.getAdditionalFileStringHeader();
 		return ToolBox.appendArrays(new String[]{"paretoMetricCurrent","paretoMetricFront"}, superHd);
     }
 
@@ -507,8 +507,8 @@ public abstract class AbstractMultiObjectiveOptimizationProblem extends Abstract
      * @see eva2.server.go.problems.AbstractOptimizationProblem#getAdditionalFileStringInfo(eva2.server.go.PopulationInterface)
      */
     @Override
-    public String[] getAdditionalFileStringInfo(PopulationInterface pop) {
-    	String[] superInfo = super.getAdditionalFileStringInfo(pop);
+    public String[] getAdditionalFileStringInfo() {
+    	String[] superInfo = super.getAdditionalFileStringInfo();
     	return ToolBox.appendArrays(new String[]{"Pareto metric on the current population (per generation)",
     			"Pareto metric on the collected pareto front"}, superInfo);
     }
diff --git a/src/eva2/server/go/problems/AbstractOptimizationProblem.java b/src/eva2/server/go/problems/AbstractOptimizationProblem.java
index 364917ee..df803253 100644
--- a/src/eva2/server/go/problems/AbstractOptimizationProblem.java
+++ b/src/eva2/server/go/problems/AbstractOptimizationProblem.java
@@ -241,7 +241,7 @@ implements InterfaceOptimizationProblem /*, InterfaceParamControllable*/, Serial
      * @param pop   The population that is to be refined.
      * @return String
      */
-    public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
+    public String[] getAdditionalFileStringHeader() {
     	if (this instanceof InterfaceInterestingHistogram) return new String[]{"solution","histogram","score"};
     	else return new String[]{"solution"};
     }
@@ -250,7 +250,7 @@ implements InterfaceOptimizationProblem /*, InterfaceParamControllable*/, Serial
      * @param pop   The population that is to be refined.
      * @return String
      */
-    public String[] getAdditionalFileStringInfo(PopulationInterface pop) {
+    public String[] getAdditionalFileStringInfo() {
     	if (this instanceof InterfaceInterestingHistogram) 
     		return new String[]{"Representation of the current best individual",
     			"Fitness histogram of the current population",
diff --git a/src/eva2/server/go/problems/AbstractProblemDouble.java b/src/eva2/server/go/problems/AbstractProblemDouble.java
index 82d0b28e..bab287ac 100644
--- a/src/eva2/server/go/problems/AbstractProblemDouble.java
+++ b/src/eva2/server/go/problems/AbstractProblemDouble.java
@@ -574,8 +574,8 @@ public abstract class AbstractProblemDouble extends AbstractOptimizationProblem
 	}
 
 	@Override
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		String[] superHeader = super.getAdditionalFileStringHeader(pop);
+	public String[] getAdditionalFileStringHeader() {
+		String[] superHeader = super.getAdditionalFileStringHeader();
 		if (isWithConstraints())
 			return ToolBox.appendArrays(superHeader, new String[] { "rawFit",
 					"numViol", "sumViol" });
@@ -584,8 +584,8 @@ public abstract class AbstractProblemDouble extends AbstractOptimizationProblem
 	}
 
 	@Override
-	public String[] getAdditionalFileStringInfo(PopulationInterface pop) {
-		String[] superInfo = super.getAdditionalFileStringInfo(pop);
+	public String[] getAdditionalFileStringInfo() {
+		String[] superInfo = super.getAdditionalFileStringInfo();
 		if (isWithConstraints())
 			return ToolBox
 					.appendArrays(
diff --git a/src/eva2/server/go/problems/F8Problem.java b/src/eva2/server/go/problems/F8Problem.java
index 858bd018..cabee42f 100644
--- a/src/eva2/server/go/problems/F8Problem.java
+++ b/src/eva2/server/go/problems/F8Problem.java
@@ -158,8 +158,8 @@ public class F8Problem extends AbstractProblemDoubleOffset
 	}
 
 	@Override
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		String[] superHd = super.getAdditionalFileStringHeader(pop);
+	public String[] getAdditionalFileStringHeader() {
+		String[] superHd = super.getAdditionalFileStringHeader();
 		return ToolBox.appendArrays(new String[]{"numOptimaFound","maxPeakRatio"}, superHd);
 //		return "#Optima found \tMaximum Peak Ratio \t" + super.getAdditionalFileStringHeader(pop);
 	}
diff --git a/src/eva2/server/go/problems/FLensProblem.java b/src/eva2/server/go/problems/FLensProblem.java
index 50d7b626..9d103199 100644
--- a/src/eva2/server/go/problems/FLensProblem.java
+++ b/src/eva2/server/go/problems/FLensProblem.java
@@ -344,19 +344,6 @@ public class FLensProblem extends AbstractOptimizationProblem implements Interfa
 		result += "Y = " + individual.getFitness(0);
 		return result;
 	}
-
-	@Override
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		return new String[]{"Solution"};
-	}
-	@Override
-	public Object[] getAdditionalFileStringValue(PopulationInterface pop) {
-		String result ="{";
-		double[] data = ((InterfaceDataTypeDouble) pop.getBestIndividual()).getDoubleData();
-		for (int i = 0; i < data.length; i++) result += data[i] +"; ";
-		result += "}";
-		return new Object[]{result};
-	}
 	
 	/** This method allows you to output a string that describes a found solution
 	 * in a way that is most suiteable for a given problem.
diff --git a/src/eva2/server/go/problems/InterfaceAdditionalPopulationInformer.java b/src/eva2/server/go/problems/InterfaceAdditionalPopulationInformer.java
index 0900c411..a2a7de0e 100644
--- a/src/eva2/server/go/problems/InterfaceAdditionalPopulationInformer.java
+++ b/src/eva2/server/go/problems/InterfaceAdditionalPopulationInformer.java
@@ -17,7 +17,7 @@ public interface InterfaceAdditionalPopulationInformer {
 	 * @param pop   The population of the optimization run.
 	 * @return String
 	 */
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop);
+	public String[] getAdditionalFileStringHeader();
 
 	/**
 	 * Optionally return informative descriptions of the data fields.
@@ -25,7 +25,7 @@ public interface InterfaceAdditionalPopulationInformer {
 	 * @param pop
 	 * @return
 	 */
-	public String[] getAdditionalFileStringInfo(PopulationInterface pop);
+	public String[] getAdditionalFileStringInfo();
 	
 	/** 
 	 * This method returns additional statistical data.
diff --git a/src/eva2/server/go/problems/PSymbolicRegression.java b/src/eva2/server/go/problems/PSymbolicRegression.java
index ab3d5774..04494c20 100644
--- a/src/eva2/server/go/problems/PSymbolicRegression.java
+++ b/src/eva2/server/go/problems/PSymbolicRegression.java
@@ -510,8 +510,8 @@ public class PSymbolicRegression extends AbstractOptimizationProblem implements
 	}
 
 	@Override
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
-		String[] superHd = super.getAdditionalFileStringHeader(pop);
+	public String[] getAdditionalFileStringHeader() {
+		String[] superHd = super.getAdditionalFileStringHeader();
 		return ToolBox.appendArrays(new String[]{"bestIndySize","avgIndySize","avgMaxIndyDepth"}, superHd);
 	}
 
diff --git a/src/eva2/server/go/strategies/ClusterBasedNichingEA.java b/src/eva2/server/go/strategies/ClusterBasedNichingEA.java
index a6073720..878e4a0e 100644
--- a/src/eva2/server/go/strategies/ClusterBasedNichingEA.java
+++ b/src/eva2/server/go/strategies/ClusterBasedNichingEA.java
@@ -1142,14 +1142,14 @@ public class ClusterBasedNichingEA implements InterfacePopulationChangedEventLis
 		return "If fitness improves less than this value within the halting window, convergence is assumed. May be set to zero.";
 	}
 
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
+	public String[] getAdditionalFileStringHeader() {
 		return new String[]{"numUndiff","numActSpec","avgSpecMeas","numArchived", 
 				"archivedMedCorr", "archivedMeanDist"
 //				, "numCollisions", "clustSig"
 				}; 
 	}
 	
-	public String[] getAdditionalFileStringInfo(PopulationInterface pop) { // TODO use these as Tool Tip Texts???
+	public String[] getAdditionalFileStringInfo() {
 		return new String[] {
 				"The number of exploring individuals in the main population",
 				"The number of active species (sub-populations)",
diff --git a/src/eva2/server/go/strategies/ClusteringHillClimbing.java b/src/eva2/server/go/strategies/ClusteringHillClimbing.java
index 9df27eec..f4d8ef1c 100644
--- a/src/eva2/server/go/strategies/ClusteringHillClimbing.java
+++ b/src/eva2/server/go/strategies/ClusteringHillClimbing.java
@@ -418,11 +418,11 @@ public class ClusteringHillClimbing implements InterfacePopulationChangedEventLi
 		return "Set the method to be used for the hill climbing as local search";
 	}
 
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
+	public String[] getAdditionalFileStringHeader() {
 		return new String[]{"numIndies"};
 	}
 	
-	public String[] getAdditionalFileStringInfo(PopulationInterface pop) {
+	public String[] getAdditionalFileStringInfo() {
 		return new String[]{"The current population size"};
 	}
 	
diff --git a/src/eva2/server/go/strategies/ParticleSwarmOptimization.java b/src/eva2/server/go/strategies/ParticleSwarmOptimization.java
index 0469166f..fa0d0727 100644
--- a/src/eva2/server/go/strategies/ParticleSwarmOptimization.java
+++ b/src/eva2/server/go/strategies/ParticleSwarmOptimization.java
@@ -2060,12 +2060,12 @@ public class ParticleSwarmOptimization implements InterfaceOptimizer, java.io.Se
 //	public void setDoLocalSearch(boolean doLocalSearch) {
 //		this.doLocalSearch = doLocalSearch;
 //	}
-	public String[] getAdditionalFileStringHeader(PopulationInterface pop) {
+	public String[] getAdditionalFileStringHeader() {
 		if (emaPeriods > 0) return new String[]{"meanEMASpeed", "meanCurSpeed"};
 		else return new String[]{"meanCurSpeed"};
 	}	
 	
-	public String[] getAdditionalFileStringInfo(PopulationInterface pop) {
+	public String[] getAdditionalFileStringInfo() {
 		if (emaPeriods > 0) return new String[]{"Exponential moving average of the (range-relative) speed of all particles", "The mean (range-relative) current speed of all particles"};
 		else return new String[]{"The mean (range-relative) current speed of all particles"};
 	}
diff --git a/src/eva2/server/modules/AbstractModuleAdapter.java b/src/eva2/server/modules/AbstractModuleAdapter.java
index 09dceed5..e91e68c3 100644
--- a/src/eva2/server/modules/AbstractModuleAdapter.java
+++ b/src/eva2/server/modules/AbstractModuleAdapter.java
@@ -122,11 +122,11 @@ abstract public class AbstractModuleAdapter implements ModuleAdapter, Serializab
 	  } else return null;
   }
   
-//  public void setGOParameters(InterfaceGOParameters params) {
-//	  if ((m_Processor != null) && (m_Processor instanceof Processor)) {
-//		  ((Processor)m_Processor).setGOParams(params);
-//	  }
-//  }
+  public void setGOParameters(InterfaceGOParameters goParams) {
+	  if ((m_Processor != null) && (m_Processor instanceof Processor)) {
+		  ((Processor)m_Processor).setGOParams(goParams);
+	  } 
+  }
   
 //  public void loadGOParameters(String serParamsFile) {
 //	  if ((m_Processor != null) && (m_Processor instanceof Processor)) {
diff --git a/src/eva2/server/modules/GOModuleAdapter.java b/src/eva2/server/modules/GOModuleAdapter.java
index 7bd7d10f..f4c9873e 100644
--- a/src/eva2/server/modules/GOModuleAdapter.java
+++ b/src/eva2/server/modules/GOModuleAdapter.java
@@ -2,6 +2,7 @@ package eva2.server.modules;
 
 import java.io.Serializable;
 
+import eva2.server.go.InterfaceGOParameters;
 import eva2.tools.jproxy.MainAdapterClient;
 
 
@@ -39,8 +40,19 @@ public class GOModuleAdapter extends GenericModuleAdapter implements ModuleAdapt
    * @param AdapterName	the title of the ModulAdapter
    * @param Client	the client instance
    */
-  public GOModuleAdapter(String adapterName, String serParamsFile, String noGuiLogFile, MainAdapterClient client) {
+  public GOModuleAdapter(String adapterName, InterfaceGOParameters goParams, String noGuiLogFile, MainAdapterClient client) {
        //super(adapterName, "", client, GOParameters.getInstance(serParamsFile, false), false);
-       super(adapterName, "", client, GOParameters.getInstance(serParamsFile, serParamsFile==null), false, noGuiLogFile);
+       super(adapterName, "", client, goParams, false, noGuiLogFile);
    }
+  
+//  /**
+//   * Starts a statistics GUI and the GOProcessor thread with a given GOParameters file.
+//   * 
+//   * @param AdapterName	the title of the ModulAdapter
+//   * @param Client	the client instance
+//   */
+//  public GOModuleAdapter(String adapterName, String serParamsFile, String noGuiLogFile, MainAdapterClient client) {
+//       //super(adapterName, "", client, GOParameters.getInstance(serParamsFile, false), false);
+//       super(adapterName, "", client, GOParameters.getInstance(serParamsFile, serParamsFile==null), false, noGuiLogFile);
+//   }
 }
\ No newline at end of file
diff --git a/src/eva2/server/modules/ModuleAdapter.java b/src/eva2/server/modules/ModuleAdapter.java
index 38bf387b..dcef6375 100644
--- a/src/eva2/server/modules/ModuleAdapter.java
+++ b/src/eva2/server/modules/ModuleAdapter.java
@@ -13,9 +13,6 @@ package eva2.server.modules;
  * IMPORTS
  *==========================================================================*/
 import eva2.gui.EvATabbedFrameMaker;
-import eva2.gui.LogPanel;
-import eva2.server.go.operators.postprocess.PostProcessParams;
-import eva2.server.stat.InterfaceTextListener;
 import eva2.tools.jproxy.RemoteStateListener;
 /*==========================================================================*
 * INTERFACE DECLARATION
diff --git a/src/eva2/server/modules/Processor.java b/src/eva2/server/modules/Processor.java
index f76e641d..753330c2 100644
--- a/src/eva2/server/modules/Processor.java
+++ b/src/eva2/server/modules/Processor.java
@@ -1,5 +1,6 @@
 package eva2.server.modules;
 
+import java.util.List;
 import java.util.Vector;
 
 import javax.swing.JOptionPane;
@@ -228,7 +229,7 @@ public class Processor extends Thread implements InterfaceProcessor, InterfacePo
         String popLog = null; //"populationLog.txt";
 
         while (isOptRunning() && (runCounter<m_Statistics.getStatisticsParameter().getMultiRuns())) {
-        	m_Statistics.startOptPerformed(getInfoString(),runCounter, goParams);
+        	m_Statistics.startOptPerformed(getInfoString(),runCounter, goParams, getInformerList());
 
         	this.goParams.getProblem().initProblem();
         	this.goParams.getOptimizer().SetProblem(this.goParams.getProblem());
@@ -355,13 +356,10 @@ public class Processor extends Thread implements InterfaceProcessor, InterfacePo
     public void registerPopulationStateChanged(Object source, String name) {
     	if (name.equals(Population.nextGenerationPerformed)) {
 //    		System.out.println(getGOParams().getOptimizer().getPopulation().getFunctionCalls() + " " + getGOParams().getOptimizer().getPopulation().getBestFitness()[0]);
-    		Vector informerList = new Vector<InterfaceAdditionalPopulationInformer>(2);
-    		informerList.add(this.goParams.getProblem());
-    		if (this.goParams.getOptimizer() instanceof InterfaceAdditionalPopulationInformer) informerList.add(this.goParams.getOptimizer());
     		m_Statistics.createNextGenerationPerformed(
     				(PopulationInterface)this.goParams.getOptimizer().getPopulation(), 
     				this.goParams.getOptimizer(),
-    				informerList);
+    				getInformerList());
     		if (m_ListenerModule != null) {
     			m_ListenerModule.updateProgress(
     					getStatusPercent(
@@ -372,7 +370,14 @@ public class Processor extends Thread implements InterfaceProcessor, InterfacePo
     		}
     	}
     }
-
+    
+    protected List<InterfaceAdditionalPopulationInformer> getInformerList() {
+		Vector<InterfaceAdditionalPopulationInformer> informerList = new Vector<InterfaceAdditionalPopulationInformer>(2);
+		informerList.add(this.goParams.getProblem());
+		if (this.goParams.getOptimizer() instanceof InterfaceAdditionalPopulationInformer) informerList.add((InterfaceAdditionalPopulationInformer)this.goParams.getOptimizer());
+		return informerList;
+    }
+    
     /** This method writes Data to file.
      * @param line      The line that is to be added to the file
      */
diff --git a/src/eva2/server/stat/AbstractStatistics.java b/src/eva2/server/stat/AbstractStatistics.java
index c1dd032d..4f3a4f72 100644
--- a/src/eva2/server/stat/AbstractStatistics.java
+++ b/src/eva2/server/stat/AbstractStatistics.java
@@ -65,7 +65,8 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	private ArrayList<Double[]> sumDataCollection; // collect summed-up data of multiple runs indexed per iteration
 	protected Object[] currentStatObjectData = null; // the raw Object data collected in an iteration
 	protected Double[] currentStatDoubleData = null; // the parsed doubles collected in an iteration (or null for complex data fields)
-	protected String[] currentHeaderData = null; // the header Strings of the currently provided data
+	protected String[] currentStatHeader = null; // the header Strings of the currently provided data
+	protected String[] currentStatMetaInfo = null; // meta information on the statistical data
 	private Double[] statDataSumOverAll = null;
 //	, lastAdditionalInfoSums=null;
 
@@ -133,7 +134,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	
 	private void fireDataListeners() {
 		if (dataListeners!=null) for (InterfaceStatisticsListener l : dataListeners) {
-			l.notifyGenerationPerformed(currentHeaderData, currentStatObjectData, currentStatDoubleData);
+			l.notifyGenerationPerformed(currentStatHeader, currentStatObjectData, currentStatDoubleData);
 		}
 	}
 	
@@ -146,10 +147,10 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	 */
 	private void fireDataListenersStartStop(int runNumber, boolean normal, boolean start) {
 		if (dataListeners!=null) for (InterfaceStatisticsListener l : dataListeners) {
-			if (start) l.notifyRunStarted(runNumber, m_StatsParams.getMultiRuns());
+			if (start) l.notifyRunStarted(runNumber, m_StatsParams.getMultiRuns(), currentStatHeader, currentStatMetaInfo);
 			else {
 				l.notifyRunStopped(optRunsPerformed, normal);
-				if (optRunsPerformed>1) l.finalMultiRunResults(currentHeaderData, finalObjectData);
+				if (optRunsPerformed>1) l.finalMultiRunResults(currentStatHeader, finalObjectData);
 			}
 		}
 	}
@@ -221,17 +222,24 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 		saveParams = doSave;
 	}
 
-	public void startOptPerformed(String infoString, int runNumber, Object params) {
+	public void startOptPerformed(String infoString, int runNumber, Object params, List<InterfaceAdditionalPopulationInformer> informerList) {
 		if (TRACE) {
 			System.out.println("AbstractStatistics.startOptPerformed " + runNumber);
 			System.out.println("Statsparams were " + BeanInspector.toString(m_StatsParams));
 		}
 		
 		if (runNumber == 0) {
-			currentHeaderData=null;
+			// store the intial graph selection state, so that modifications during runtime cannot cause inconsistencies
+			lastFieldSelection = (StringSelection)m_StatsParams.getFieldSelection().clone();
+			lastIsShowFull = m_StatsParams.isOutputAllFieldsAsText();
+
 			currentStatDoubleData=null;
 			currentStatObjectData=null;
 			
+			List<String> headerFields=getOutputHeaderFieldNames(informerList);
+			currentStatHeader = headerFields.toArray(new String[headerFields.size()]);
+			currentStatMetaInfo = getOutputMetaInfoAsArray(informerList);
+			
 			functionCallSum = 0;
 			firstPlot = true;
 			optRunsPerformed = 0;
@@ -256,9 +264,6 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 			feasibleFoundAfterSum=-1;
 			numOfRunsFeasibleFound=0;
 			
-			// store the intial graph selection state, so that modifications during runtime cannot cause inconsistencies
-			lastFieldSelection = (StringSelection)m_StatsParams.getFieldSelection().clone();
-			lastIsShowFull = m_StatsParams.isOutputAllFieldsAsText();
 		}
 		feasibleFoundAfter=-1;
 		bestCurrentIndy = null;
@@ -456,7 +461,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	private String getFinalAdditionalInfo() {
 		PopulationInterface bestPop = makeStatsPop();
 //		List<String> additionalFields = getAdditionalInfoHeader(lastInformerList, bestPop);
-		String additionalFields = getOutputHeaderString(lastInformerList, bestPop);
+		String additionalFields = getOutputHeaderFieldNamesAsString(lastInformerList);
 //		String header = getOutputHeader(lastInformerList, bestPop);
 		List<Object> vals = getOutputValues(lastInformerList, bestPop);
 		
@@ -502,7 +507,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	}
     
     public String refineToText(ArrayList<Double[]> data, int iterationsToShow) {
-    	String hd = getOutputHeaderString(lastInformerList, null);
+    	String hd = getOutputHeaderFieldNamesAsString(lastInformerList);
     	StringBuffer sbuf = new StringBuffer("Iteration");
     	sbuf.append(textFieldDelimiter);
     	sbuf.append(hd);
@@ -591,11 +596,28 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	 * @param pop
 	 * @return
 	 */
-	protected String getOutputHeaderString(List<InterfaceAdditionalPopulationInformer> informerList, PopulationInterface pop) {
-		List<String> headlineFields = getOutputHeaderFieldNames(informerList, pop);
+	protected String getOutputHeaderFieldNamesAsString(List<InterfaceAdditionalPopulationInformer> informerList) {
+		List<String> headlineFields = getOutputHeaderFieldNames(informerList);
 		return StringTools.concatFields(headlineFields, textFieldDelimiter);
 	}
 	
+	/**
+	 * Collect meta information on both internal fields and fields of external informers. 
+	 * The length of this list depends on the field selection state.
+	 * 
+	 * @param informerList
+	 * @param pop
+	 * @return
+	 */
+	protected List<String> getOutputHeaderFieldNames(List<InterfaceAdditionalPopulationInformer> informerList) {
+		ArrayList<String> headlineFields = new ArrayList<String>(5);
+		headlineFields.addAll(Arrays.asList(getSimpleOutputHeader())); 
+		if (informerList != null) {
+			headlineFields.addAll(getAdditionalHeaderMetaInfo(informerList, null));
+		}
+		return headlineFields;
+	}
+	
 	/**
 	 * Collect all field names of both internal fields and fields of external informers. 
 	 * The length of this list depends on the field selection state.
@@ -604,14 +626,22 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	 * @param pop
 	 * @return
 	 */
-	protected List<String> getOutputHeaderFieldNames(List<InterfaceAdditionalPopulationInformer> informerList, PopulationInterface pop) {
-		ArrayList<String> headlineFields = new ArrayList<String>(5);
-		headlineFields.addAll(Arrays.asList(getSimpleOutputHeader())); 
+	protected List<String> getOutputMetaInfo(List<InterfaceAdditionalPopulationInformer> informerList) {
+		ArrayList<String> infoStrings = new ArrayList<String>(5);
+		ArrayList<String> addStrings = new ArrayList<String>(5);
+		infoStrings.addAll(Arrays.asList(getSimpleOutputMetaInfo())); 
 		if (informerList != null) {
-			headlineFields.addAll(getAdditionalInfoHeader(informerList, pop));
+			getAdditionalHeaderMetaInfo(informerList, addStrings);
 		}
-		return headlineFields;
+		infoStrings.addAll(addStrings);
+		return infoStrings;
 	}
+
+	protected String[] getOutputMetaInfoAsArray(List<InterfaceAdditionalPopulationInformer> informerList) {
+		List<String> metaStrings = getOutputMetaInfo(informerList);
+		return metaStrings.toArray( new String[metaStrings.size()]);
+	}
+
 	
 	/**
 	 * Collect the names of data fields which are collected internally.This must correspond to the
@@ -632,6 +662,24 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 		return headerEntries.toArray(new String[headerEntries.size()]);
 	}
 	
+	/**
+	 * Collect the info strings of data fields collected internally. This must correspond to
+	 * the method {@link #getSimpleOutputValues()}.
+	 * 
+	 * @see #getSimpleOutputValues() 
+	 * @return 
+	 */
+	protected String[] getSimpleOutputMetaInfo() {
+		GraphSelectionEnum[] vals = GraphSelectionEnum.values();
+		ArrayList<String> headerInfo = new ArrayList<String>();
+		headerInfo.add("The number of function evaluations");
+		for (int i=0; i<vals.length; i++) {
+			if (isRequestedField(vals[i])) headerInfo.add(GraphSelectionEnum.getInfoStrings()[i]);
+		}
+//		return new String[]{"Fun.calls","Best","Mean", "Worst"};
+		return headerInfo.toArray(new String[headerInfo.size()]);
+	}
+	
 	/**
 	 * Indicate whether the given statistics data type is requested to
 	 * be displayed (and thus needs to be calculated).
@@ -737,25 +785,34 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 		return values;
 //		return StringTools.concatValues(values, textFieldDelimiter);
 	}
-	
+
 	/**
-	 * Collect all field names of external informer instances.
+	 * Collect additional info header and (optionally) meta information for the fields selected.
 	 * The length of this list depends on the field selection state.
+	 * 
 	 * @param informerList
 	 * @param pop
+	 * @param metaInfo if non null, the meta info strings are returned in this list
 	 * @return
 	 */
-	protected List<String> getAdditionalInfoHeader(List<InterfaceAdditionalPopulationInformer> informerList, PopulationInterface pop) {
-		LinkedList<String> additionals = new LinkedList<String>(); 
+	protected List<String> getAdditionalHeaderMetaInfo(List<InterfaceAdditionalPopulationInformer> informerList, List<String> metaInfo) {
+		LinkedList<String> headers = new LinkedList<String>();
+		if (metaInfo!=null && (metaInfo.size()>0)) System.err.println("Warning, metaInfo list should be empty in AbstractStatistics.getAdditionalInfoInfo"); 
 		for (InterfaceAdditionalPopulationInformer informer : informerList) {
-			additionals.addAll(Arrays.asList(informer.getAdditionalFileStringHeader(pop)));
+			headers.addAll(Arrays.asList(informer.getAdditionalFileStringHeader()));
+			if (metaInfo!=null) metaInfo.addAll(Arrays.asList(informer.getAdditionalFileStringInfo()));
 //			hdr = hdr + "\t " + informer.getAdditionalFileStringHeader(pop);
 		}
-		Iterator<String> iter = additionals.iterator();
-		if (!lastIsShowFull) while (iter.hasNext()) {
-			if (!isRequestedAdditionalField(iter.next())) iter.remove();
+		Iterator<String> hIter = headers.iterator();
+		Iterator<String> mIter = (metaInfo!=null) ? metaInfo.iterator() : null;  
+		if (!lastIsShowFull) while (hIter.hasNext()) {
+			if (mIter!=null) mIter.next();
+			if (!isRequestedAdditionalField(hIter.next())) {
+				hIter.remove();
+				if (mIter!=null) mIter.remove();
+			}
 		}
-		return additionals;
+		return headers;
 	}
 	
 	/**
@@ -824,7 +881,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 //			if (doTextOutput()) printToTextListener(getOutputHeader(null, null)+'\n');
 			firstPlot = false;
 		}
-		if ((iterationCounter == 0) && printHeaderByVerbosity()) printToTextListener(getOutputHeaderString(null, null)+'\n');
+		if ((iterationCounter == 0) && printHeaderByVerbosity()) printToTextListener(getOutputHeaderFieldNamesAsString(null)+'\n');
 
 		if (doTextOutput() && printLineByVerbosity(calls)) {
 			Pair<String,Object[]> addInfo = getOutputData(null, null);
@@ -943,7 +1000,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 	}
 	
 	/**
-	 * Do some data collection on the population. The informer parameter will not be handled by this method.
+	 * Do some data collection on the population.
 	 *
 	 */
 	public synchronized void createNextGenerationPerformed(PopulationInterface
@@ -964,9 +1021,7 @@ public abstract class AbstractStatistics implements InterfaceTextListener, Inter
 		collectPopData(pop);
 
 		if (iterationCounter==0) {
-			List<String> headerFields=getOutputHeaderFieldNames(informerList, pop);
-			currentHeaderData = headerFields.toArray(new String[headerFields.size()]);
-			String headerLine = StringTools.concatFields(headerFields, textFieldDelimiter);
+			String headerLine = StringTools.concatFields(currentStatHeader, textFieldDelimiter);
 			if (printHeaderByVerbosity()) printToTextListener(headerLine+'\n');
 		}
 		
diff --git a/src/eva2/server/stat/InterfaceStatistics.java b/src/eva2/server/stat/InterfaceStatistics.java
index 222dadc0..d9769631 100644
--- a/src/eva2/server/stat/InterfaceStatistics.java
+++ b/src/eva2/server/stat/InterfaceStatistics.java
@@ -28,7 +28,7 @@ public interface InterfaceStatistics {
 	/**
 	 * Initialize statistics computations.
 	 */
-	public void startOptPerformed(String InfoString,int runnumber, Object params); // called from processor
+	public void startOptPerformed(String InfoString,int runnumber, Object params, List<InterfaceAdditionalPopulationInformer> informerList); // called from processor
 	/**
 	 * Finalize statistics computations.
 	 */
diff --git a/src/eva2/server/stat/InterfaceStatisticsListener.java b/src/eva2/server/stat/InterfaceStatisticsListener.java
index 025bf9c8..ad173ca0 100644
--- a/src/eva2/server/stat/InterfaceStatisticsListener.java
+++ b/src/eva2/server/stat/InterfaceStatisticsListener.java
@@ -26,8 +26,10 @@ public interface InterfaceStatisticsListener {
 	 * 
 	 * @param runNumber the number of the new run, starting with 0
 	 * @param plannedMultiRuns the number of planned multi-runs
+	 * @param header	field names of the data
+	 * @param metaInfo	additional meta information on the data fields
 	 */
-	public void notifyRunStarted(int runNumber, int plannedMultiRuns);
+	public void notifyRunStarted(int runNumber, int plannedMultiRuns, String[] header, String[] metaInfo);
 
 	/**
 	 * Method called at the end of a single run.
diff --git a/src/eva2/server/stat/StatisticsDummy.java b/src/eva2/server/stat/StatisticsDummy.java
index 52b03071..4d0da9cb 100644
--- a/src/eva2/server/stat/StatisticsDummy.java
+++ b/src/eva2/server/stat/StatisticsDummy.java
@@ -79,7 +79,7 @@ public class StatisticsDummy implements InterfaceStatistics, InterfaceTextListen
 	}
 
 	public void startOptPerformed(String InfoString, int runnumber,
-			Object params) {
+			Object params, List<InterfaceAdditionalPopulationInformer> informerList) {
 		if (runnumber==0) bestIndividualAllover = null;
 		bestRunIndy = null;
 	}
diff --git a/src/eva2/server/stat/StatisticsStandalone.java b/src/eva2/server/stat/StatisticsStandalone.java
index e34e167f..3bc64354 100644
--- a/src/eva2/server/stat/StatisticsStandalone.java
+++ b/src/eva2/server/stat/StatisticsStandalone.java
@@ -77,7 +77,7 @@ public class StatisticsStandalone extends AbstractStatistics implements Interfac
 	protected void initPlots(PopulationInterface pop, List<InterfaceAdditionalPopulationInformer> informerList) {
 		if (collectData) {
 			m_ResultData = new ArrayList<ArrayList<Object[]>>(m_StatsParams.getMultiRuns());
-			List<String> description = getOutputHeaderFieldNames(informerList, pop);
+			List<String> description = getOutputHeaderFieldNames(informerList);
 			m_ResultHeaderStrings = new ArrayList<String>();
 			for (String str : description) m_ResultHeaderStrings.add(str);
 			for (int i = 0; i < m_StatsParams.getMultiRuns(); i++)
diff --git a/src/eva2/server/stat/StatisticsWithGUI.java b/src/eva2/server/stat/StatisticsWithGUI.java
index 9439c99e..d8076d71 100644
--- a/src/eva2/server/stat/StatisticsWithGUI.java
+++ b/src/eva2/server/stat/StatisticsWithGUI.java
@@ -99,8 +99,8 @@ public class StatisticsWithGUI extends AbstractStatistics implements Serializabl
 	/**
 	 *
 	 */
-	public synchronized void startOptPerformed(String infoString, int runNumber, Object goParams) {
-		super.startOptPerformed(infoString, runNumber, goParams);
+	public synchronized void startOptPerformed(String infoString, int runNumber, Object goParams, List<InterfaceAdditionalPopulationInformer> informerList) {
+		super.startOptPerformed(infoString, runNumber, goParams, informerList);
 		m_GraphInfoString = infoString;
 		
 //		m_TextCounter = m_StatisticsParameter.GetTextoutput();
diff --git a/src/eva2/server/stat/StatsParameter.java b/src/eva2/server/stat/StatsParameter.java
index 0f1f7c8c..f3da9941 100644
--- a/src/eva2/server/stat/StatsParameter.java
+++ b/src/eva2/server/stat/StatsParameter.java
@@ -384,9 +384,9 @@ public class StatsParameter implements InterfaceStatisticsParameter, InterfaceNo
 		ArrayList<String> infoFields = new ArrayList<String>();
 		// parse list of header elements, show additional Strings according to names.
 		for (InterfaceAdditionalPopulationInformer inf : informers) {
-			headerFields.addAll(Arrays.asList(inf.getAdditionalFileStringHeader(null)));
+			headerFields.addAll(Arrays.asList(inf.getAdditionalFileStringHeader()));
 			if (infoFields.size()<headerFields.size()) { // add info strings for tool tips - fill up with null if none have been returned.
-				String[] infos = inf.getAdditionalFileStringInfo(null);
+				String[] infos = inf.getAdditionalFileStringInfo();
 				if (infos!=null) infoFields.addAll(Arrays.asList(infos));
 				while (infoFields.size()<headerFields.size()) infoFields.add(null);
 			}
diff --git a/src/eva2/tools/StringTools.java b/src/eva2/tools/StringTools.java
index fa365795..209c8693 100644
--- a/src/eva2/tools/StringTools.java
+++ b/src/eva2/tools/StringTools.java
@@ -279,5 +279,17 @@ public class StringTools {
 		}
 		return sb.toString();
 	}
+
+	public static String concatFields(String[] strs,
+			String delim) {
+		StringBuffer sb = new StringBuffer();
+		int cnt=0;
+		for (String str : strs) {
+			if (cnt>0) sb.append(delim);
+			sb.append(str);
+			cnt++;
+		}
+		return sb.toString();
+	}
 }