I bought Scarface the world is yours PC GAME. I installed directX 9.0 and the game. But when i run the game ITS REAL SLOW. All my other games run fine. HALO, NFS underground 1,2, Juiced, DOOM 3 etc. Thier graphics are sweet and the speed is normal. I have a nVIDIA GeForce 6100. Whats the problem???