I have a friend who was telling me the only difference he coould see between regular TV and HDTV while playing his 360 are brighter reds. I asked him how he has it hooked up & he said the manual said to connect the S-video and RGB at the same time. I told him to try disconnecting the S-video cable. Does the 360 in fact state to connect them both?
He mostly plays Madden '06...could it just be the game?