i will try my windows xp troubleshooting partition (one i use to test everyhitng if i have problems on my main one).
no i disagree with waffle, becouse i honistly dont belive that in some parts of GTA SA like las venturas, and on the freeway, i should be gettign 21 fps!, its laggs like hell at the many fps, and i belive i should at least be getting about 40 fps all over, even when every setting inc res is turned down to lowest, the fps difference is only 3!, come on guys, the graphics are no were near as good as doom 3, and the lowest fps i get in doom 3 on total max settings is about 40, its mostly at doom 3's limit of 60, so dont tell me GTA SA should be running at 21 fps, i know GTA SA is a game best played with nvidia, but DOOM 3 is best for nvidia too.
also, i am sure that my old 9600 was getting better fps.