         else if (key == Keyboard.MENU)
         {
             menuKeyEventPreventDefaulted = event.isDefaultPrevented();
-            
-            if (menuKeyEventPreventDefaulted)
-                event.preventDefault();
         }
-        
     }
     
     /**

     *  @playerversion AIR 2.5
     *  @productversion Flex 4.5
     */ 
    protected function backKeyHandler():void
    {
        
    }

        // expect it to on desktop.
        var os:String = Capabilities.os;
        
        // FIXME (chiedozi): enumerate all possible os values
        if (os.indexOf("Windows") != -1 || os.indexOf("Mac OS") != -1)
            NativeApplication.nativeApplication.
                addEventListener(Event.EXITING, nativeApplication_deactivateHandler);
