I can run the dx10 client fine. But when trying to run the dx9 client it wont even start, it just crashes. Is this because of my drivers or something? I have the latest version. I'm using an ATI 4830. Could my old gfx drivers be conflicting?(I tried to remove them but couldnt find them in my device manager). Crysis dx9 wont work either. But dx9 games will work.