diff --git a/bin/application/Main.class b/bin/application/Main.class
index 87af273..af5fe9a 100644
Binary files a/bin/application/Main.class and b/bin/application/Main.class differ
diff --git a/bin/application/MainWindowController.class b/bin/application/MainWindowController.class
index 0926421..ddfe398 100644
Binary files a/bin/application/MainWindowController.class and b/bin/application/MainWindowController.class differ
diff --git a/src/application/Main.java b/src/application/Main.java
index 21f4699..a7f3ee0 100644
--- a/src/application/Main.java
+++ b/src/application/Main.java
@@ -86,7 +86,7 @@ public class Main extends Application {
 				gamesDBFile = new File(dirWin + "/games.db");
 				localDB = new File(dirWin+"/localRoms.db");
 				pictureCache= new File(dirWin+"/picture_cache");
-				pane.setPrefWidth(892);
+				pane.setPrefWidth(892);	//FIXME this is not working under Windows anymore, need to test which size is correct. see issue #main.1
 			}
 			
 			//startup checks
@@ -193,8 +193,19 @@ public class Main extends Application {
 		final ChangeListener<Number> listener = new ChangeListener<Number>() {
 			@Override
 			public void changed(ObservableValue<? extends Number> observable, Number oldValue, final Number newValue) {
-				mainWindowController.refreshUIData();
+				int xPosHelperMax;
+				//TODO  see issue #main.1
+				if(System.getProperty("os.name").equals("Linux")){
+		    		xPosHelperMax = (int) Math.floor((pane.getPrefWidth() - 36) / 217);
+		    	} else {
+		    		xPosHelperMax = (int) Math.floor((pane.getPrefWidth() - 24) / 217);
+		    	}
 				mainWindowController.refreshplayBtnPosition();
+				//call only if there is enough space for a new row TODO test this!
+				if (mainWindowController.getxPosHelper() != xPosHelperMax) {
+					mainWindowController.refreshUIData();
+				}
+//				mainWindowController.refreshUIData();
 				//TODO saveSettings only on left mouseBtn release
 				mainWindowController.saveSettings();
 			}
diff --git a/src/application/MainWindowController.java b/src/application/MainWindowController.java
index 017942f..82c2a04 100644
--- a/src/application/MainWindowController.java
+++ b/src/application/MainWindowController.java
@@ -1201,6 +1201,7 @@ public class MainWindowController {
      */
     private void generatePosition() {
     	int xPosHelperMax;
+    	//TODO  see issue #main.1
     	if(System.getProperty("os.name").equals("Linux")){
     		xPosHelperMax = (int) Math.floor((main.pane.getPrefWidth() - 36) / 217);
     	} else {