Hi all, I thought of playing Batman Arkham Asylum yesterday and it seems that I have a faulty GPU (with all settings at High and everything enabled) The minute ANY 3D scene starts; I hear this high noise coming from upper-right side from the Apple logo if you're facing the screen. GPU temperature jumps to 92c while just idling at the start screen of the game (with Batman in the background in 3D) without even playing. The second I close the game the noise is just gone. I also sometimes hear it when just scrolling through a high-res photo in iPhoto. I believe iPhoto uses the GPU too? Do I have a lemon? I'm already overseas with the iMac with no Apple store around. What do I do? Ta.