Do you have any other heavy graphics card intensive games bugs?
I suppose they run fine....... if not, PcPitstop:
http://www.pcpitstop.com/
They used to check the graphics card for free, I haven't been there in a while. If they do, that would rule the card out. I'll go there and see if they still do. BRB.......
They do, if your card runs those graphics, it is fine.
I didn't need to create an account either, so it is simple too.