it definitely isnt because of heat. it happens when i first open the game up aswell. it also does it on low settings with 800 by 640.
it does it on other games also such as black ops.
this is a screen shot of what you wanted.
Imageshack - unledvpl.png
i see the voltages are a bit out, though looking on my bios. they are what they are suppose to be.
i have changed my hard drive around with another one and it still does it. so its not my hard drive.
its also not the internet because it happens on single player.