Help! I'm having trouble synching my Dell Latitude E6400 laptop to my Compaq MP3800 projector. I can get PC screen contents to appear on projector,but experience difficulty when trying to get image to appear on both projector and PC. When I hit Fn F8, the content appears on both, but supimposed on the projector is an "Adjusting" window that does not go away. The only way to get it to disappear, is to turn the projector off, and then reconnect. Is there a way to fix this?