I have been playing doom lately having good fps (usually 40-60fps) at medium settings 1024x768 when no monsters are on the screen. Then when I get to a part when I am shooting monsters my frsmerste goes to 60 to like 15fps! <_< Anyways, can someone tell me how to overclock my card( for those of you who can't see my sig because of eye troubles, I have a GeForce FX 5700Ultra with stock fan)?