I have a new 4100 MP. When I switch from my HD cable box (using the composite video cables) to a DVD (using the S-video connection) or my Gamecube (using a standard video input) I get wide bands of horizontal lines throughout the screen, as if the resolution is not switching properly. When I unplug the hd box restrart the projector the DVD and the Gamecube, work flawlessly.

Any suggestions?

Thanks