diff --git a/src/Viewer/fg_os_osgviewer.cxx b/src/Viewer/fg_os_osgviewer.cxx
index 0fdd391..fe2b599 100755
--- a/src/Viewer/fg_os_osgviewer.cxx
+++ b/src/Viewer/fg_os_osgviewer.cxx
@@ -590,7 +590,7 @@ void fgOSFullScreen()
     
     //bool isFullScreen = !window->getWindowDecoration();
 
-    bool isFullScreen = true;
+    bool isFullScreen = false;
 
     SG_LOG(SG_VIEW, SG_DEBUG, "Toggling fullscreen. Previous window rectangle (" << x << ", " << y << ") x (" << width << ", " << height << "), fullscreen: " << isFullScreen << ", number of screens: " << wsi->getNumScreens());
     if (isFullScreen) {