diff --git a/src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java b/src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java
index fa13d0ef675fa02bc35a03f075b32129943093ec..0e5888ee3de61440fe2508ec27d8446d1304ac67 100644
--- a/src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java
+++ b/src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java
@@ -361,9 +361,11 @@ public class LWCToolkit extends LWToolkit {
             CWrapper.NSObject.release(screen);
         }
         // Convert between Cocoa's coordinate system and Java.
-        return new Insets(fullScreen.height - workArea.height - workArea.y,
-                          workArea.x, workArea.y,
-                          fullScreen.width - workArea.width - workArea.x);
+        int bottom = workArea.y - fullScreen.y;
+        int top = fullScreen.height - workArea.height - bottom;
+        int left = workArea.x - fullScreen.x;
+        int right = fullScreen.width - workArea.width - left;
+        return  new Insets(top, left, bottom, right);
     }
 
     @Override