My X1800XT is acting weird. When im playing games it randomly here and there does like a full screen flicker of black and white shit. Its really fast though; blink of an eye kinda thing, but its driving me nuts. Im using Windows X64 with 5.12 64bit drivers and using a ASUS A8R-MVP.I get no artifacts just that flicker. Im wondering if its windows x64 bit or is it the card doing that. Its liquid cooled so im not sure its heat. When i touch the card its luke warm after games. Anyone else having this problem???