Hi hope someone can help, ive had my 508 a month now and its been great. Got my sky hd and xbox 360 connected. I played my xbox last night before going to work with no problems. I put it on today as normal but a blue screen keeps flashing every few seconds on the tv. I have my xbox connected via hdmi to the game hdmi input and output hdmi into the tv, I havent changed anything since last night which is what is puzzling me. Please can anyone help, thanks.