A guy on the Hard forums fixed his dead 8800GT by baking it in the oven:
Holy crap, it worked! Dead video card resurrected! - [H]ard|Forum
Holy crap, it worked! Dead video card resurrected! - [H]ard|Forum
People do put their 360s in the oven too BTW, though it's normally suggested to just use a heat gun since the oven heats up the resistors and what not which shouldn't be put under such high temperatures.Yeah I saw that! Pretty amazing.
Kinda like the fix for the RRoD on a 360 lol.