New AppleTV2 just failed! Video problems

Hi,

Bought the new Apple TV just over a week ago and have been chuffed so far with it. However I turned it on this morning and found it has acquired an "interesting" visual artefact, i.e. a massive distorted stripe running form the top to the bottom of the screen (see attached pic). I've tried it on two different TVs and with numerous different HDMI cables, both connected straight to the TV and through my AV Receiver (as it normally was connected) and this still appears so it appears to be the ATV. I've got a Genius Bar appointment tomorrow but has anyone else experienced this?

TIA

Rich