I got this weird problem with my xbox. With Fable II, GTAIV, Rainbow Six Vegas I/II... I have a very weird video problem. During gameplay, the display is BORKED. There's this funky spiraling effect, everything is RED, and the image is terrible garbled.
BUT! this only happens on gameplay. My Dashboard is perfectly fine, start menus in the game, pause screens, achievement/friend notifications are all fine. So what's going on?