Basically after around 45 minutes of use my xbox displays flashy rainbow lines with shadows on any game on any screen. I can still just about see the game but it is impossible to play. I have tried new scart leads to the TV.
I think the problem might have something to do with overheating, as if you turn the system off it then does not show the affliction however after 10 minutes it comes straight back.
I am wondering whether anyone else has had this problem and whether there is a simple or complex solution.