Here are my rig specs: AMD X2 3800+ ASUS SE Motherboard 2GB Memory EVGA GTS 320 KO 3dmark 06 score = 7,400 PSU 650W 52A Is my rig underperforming???? I am thinking about returning my video card and get an ATI2900? Shall I? I know that my CPU may bottleneck the video card but is that right??? what shall I doooo??