AMD Phenom II X4 @ 3.2 GHz
4 GB RAM.
Sapphire 7850 1GB.
Also using the latest drivers for pretty much everything I have, and I doubt my set up should have any troubles running this.
Also, AFAIK, it only does that in Blizzard games. I don't have any issues running games such as BF3, Borderlands 2, Metro 2033, etc.