Please help, 3 week old GTX 660 suddenly went crazy - screenshots included

I just built my new pc about 3 weeks ago and tonight while I was playing Crysis: Warhead it all of the sudden went crazy on me. Below is a screen capture while on the menu of that game and of it with this website pulled up in Firefox. This card has never had a problem and has the most recent drivers. Since this problem started, I tried restarting the pc and then reinstalling the driver for the card. Neither thing made a difference. I checked a couple of my other games and then problem seems to be on everything.

Any ideas of what this could be? I dread that it might be a hardware problem, but I am starting to think that is the very thing it might be.

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The card is only 3 weeks old so there is no dust in it at all. I do not have another power supply to try on it so i cant test that out. I cant underclock the card because i dont know how to adjust clock speeds hence why i steer away from overclocking haha.