Basically on two TVs via HDMI, the 360 turns the screen purple, orangish, and then sometimes looks like that porn you tried to get over cable when you were a kid. I tried the composite cables on my other TV and it did the same thing - but I'm going to try it on the big TV, but I don't expect it to work. I have a 3 year warranty through Target - should I just take it in tomorrow and exchange it?