HI i just got the 4850 x2, with an i7 920 at 3ghz and 6gb of ram, i'm running vista 64 and cat 9.2, my first problem, is that 3d mark vantage has major artifacts, someone told me its vantage's fault, so that's fine, however running Team fortress 2 at 1920 and max settings, i get 150+ fps at open areas, but in firefights, I get 10s, which is utterly unplayable, my hardware should be able to handle tf2, since i can do L4d with the same settings at buttersmooth 60s, is it a driver issue? or is my card just doa, thanks!
