can anyone tell me why devil may cry 4 runs slow on my pc. i have directx 9 version, im not sure about shader 3.0 or how to find out what i have...also my system tells me that my adaptor type is nvidia geforce 7150/ nForce 630M,nVidia compatible...does that mean i have that already or thats what i could upgrade to? can you tell i m a newbie? PLEASE HELP!