From the little I understand about the new Crimson Catalyst drivers for AMD cards, I have read a lot of bugs with them running certain games(i.e. lagging, freezing up etc.) so I would install an older catalyst driver suite from AMD`s site. Actually, go to whatever your video card`s brand is(i.e.XFX, Sapphire etc) and get the latest non-Crimson drivers and see if that helps. I did and glad I`m not using the Crimson drivers until I read great positive feedback.