Well I bought my new gtx 480 a while ago 2 weeks aproximently recently its been losing its signal ... What i mean by this is my dvi says no signal for about 3 seconds and goes back to normal. Before it does this usually there is some colors and splash on my screen kinda like artifacing. Or "snow" BUT my gpu is at a cool 70c so thats not the issue. It is over clocked and I rolled back the drives. ONE TIME IT DID reach 105C for some reaosn but i quicly turned off the game... MAybe this is the prob please help!