diff --git a/src/emucore/EventHandler.cxx b/src/emucore/EventHandler.cxx
index 9e7c9ea5f..cb372c7f9 100644
--- a/src/emucore/EventHandler.cxx
+++ b/src/emucore/EventHandler.cxx
@@ -323,7 +323,8 @@ void EventHandler::handleSystemEvent(SystemEvent e, int, int)
   {
     case SystemEvent::WINDOW_EXPOSED:
     case SystemEvent::WINDOW_RESIZED:
-      myOSystem.frameBuffer().update(true); // force full update
+      //myOSystem.frameBuffer().update(true); // force full update
+      myOSystem.frameBuffer().update();
       break;
 #ifdef BSPF_UNIX
     case SystemEvent::WINDOW_FOCUS_GAINED: