Hello, I've recently bought a new gigabyte GTX660 (gv n660oc 2gd) graphics card. Installed everything, and then decided to try to run some games. Immidiately after starting a game, an annoying whistle/squealing noice appeared. This happens only in games, in the menu or in the game itself. The longer Im using the card, the louder becomes the sound. It is really annoying, and I cant play with it. It isnt the psu problem i think. I have a CX500 psu, my friend brought his 700w psu to try, adn the noise was still there. I phoned into the store, they said that they can exchange it for a new one(same card). Should i do that? What are the chances that the new one will have the same problem? I also head that coil whine goes away with time, is that true?