I recently bought an evga gtx280 from a user here. Unfortunately he threw out all the stock cooling after he stuck on some ramsinks and a fuzion gfx 2. I added a uni-sink since not everything was covered. Problem is the card is overheating badly. The block was reseated and got a coat of as5 but runs 65-69c on idle. I've been hearing about some cards being defective and I'd like to send it back. Do you think they'd make a fuss over it? I think I may be out of luck here...