well first off my pent d 925 (3.0ghz 4mb l2 cache)...runs great
and i have a sumwhat equal video card of you (7600gs but its agp
ne ways now i think i can play this game and it prolly just vista being a memory/processor hog...also the drivers are yet to be good on vista but soon will be
.....have fun playing
!...and idk about when new drivers will be out!