Actually I have a HP laptop with AMD cpu and Nvidia gpu and have experienced the scrambled lines. It is a driver issue that has been resolved. It only happened when playing flash based video for extended periods of time. At least in my experience. I've played games on the machine before and it was flawless. Half-Life 2 puts a lot more strain on the GPU than youtube so if it was a thermal issue it would have come about while playing the game.
1/10/09 at 2:22am