QUOTE(steveo1978 @ Dec 1 2012, 07:17 PM)
Is the 360 still under warranty? If it is consider getting MS to repair it.
Even if under warranty try different cables to connect it to the TV. I have seen crappy HDMI cables cause the video to get problems like that.
Does this happen as soon aa you cold boot the 360 or only after it heats up?
nope it is not under warranty.
and sometimes it happens at startup, sometimes at dashboard and in gameplay, but normally im able to get into a game