I have the retail version of the game.
My specs: Intel Core i7 860 (No OC), Radeon HD 5850 (Catalyst 11.2), 16 GB Ram, Windows 7 Home Premium x64
Edit: This topic has received a reply from Cry-Tom:
Updated our announcement topics just to make everyone aware that this is a known issue that is being looked into. I don't have any kind of work around to give you at this time but as soon as there is news we'll keep you updated.