diff --git a/btgui/OpenGLWindow/MacOpenGLWindow.mm b/btgui/OpenGLWindow/MacOpenGLWindow.mm
index cd77a9461..9283d6e66 100644
--- a/btgui/OpenGLWindow/MacOpenGLWindow.mm
+++ b/btgui/OpenGLWindow/MacOpenGLWindow.mm
@@ -374,8 +374,8 @@ void MacOpenGLWindow::createWindow(const b3gWindowConstructionInfo& ci)
     
 //    [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask];
     
-    [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask handler:^(NSEvent *event)
-    {
+//    [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask handler:^(NSEvent *event)
+  //  {
         //[window setFrameOrigin:[NSEvent mouseLocation]];
       //  NSPoint eventLocation = [m_internalData->m_window mouseLocationOutsideOfEventStream];
         
@@ -386,10 +386,10 @@ void MacOpenGLWindow::createWindow(const b3gWindowConstructionInfo& ci)
         
         
         // printf("mouse coord = %f, %f\n",m_mouseX,m_mouseY);
-        if (m_mouseMoveCallback)
-            (*m_mouseMoveCallback)(m_mouseX,m_mouseY);
+    //    if (m_mouseMoveCallback)
+     //       (*m_mouseMoveCallback)(m_mouseX,m_mouseY);
         
-    }];
+   // }];
 
     //see http://stackoverflow.com/questions/8238473/cant-get-nsmousemoved-events-from-nexteventmatchingmask-with-an-nsopenglview
        ProcessSerialNumber psn;