I am running on an HP dv7 Notebook with a Radeon 6450M video card. This system is one of those dual-video card systems, and therefore cannot use standard Catalyst drivers. I have downloaded and installed the most recent ATI video drivers from HP's website. It should be noted that I have disabled the auto-switch feature for the video cards, and run several other graphic intensive games on this system without issue. I am running Windows 7, i7 core procs, with 8Gb of ram.
Has anyone else experienced something similar? Thanks.