I am having the same problem. I have FX-57 (OC to 2.98 Ghz), Dual 7900 GTX SLI, 2 MB RAM and the game just chugs along in 1680 x 1050. I just got a new Samsung 226BW (awesome LCD by the way) and have started gaming exclusively in that resolution. Most games run just fine (Doom 3, BF2142...