I am at the end of my tether now, after trying everything I can think of, short of flattening the OS and reinstalling.

I pretty recently built a new PC, solely for this game. It's not the greatest spec, but its ample for most games on max settings.

It's:

Athlon II X4 630 3.0Ghz
6gb DDR3 1333 mem
ATI Radeon 5870 GDDR5 1gb
64gb SSD for OS and game

So....

Why, oh why, with the latest 11.2 Catalyst drivers, can I not achieve more than 10 FPS? I have reinstalled all drivers at least once.

The worst part is, I have a two year old macbook pro which runs it at 5x the frame rate on similar settings...

Please help