like most other graphic problems people seem to have.. just after the intro of the asteroid colliding with the earth the screen goes blank then middle left hand side jumbled words start to appear and at an ultra slow rate they unjumble.. its like the game is mega chunking if you get what i mean.. i let this go for a while and the screen starts to appear of the view inside the human life support chamber but then nothing its going that slow i just don't bother.. Ive never had any game graphically carry on that bad before.
Windows 7 Professional 64bit Intel I5 750 2.67hz quad core 8gb DDR3 ram 1600mhz Crossfired ATI HD5830's (crossfire off for this game)
First off, download support.amd.com/us/kbarticles/Pages/GPU121AMDCatRagePerfDriver.aspx OR A beta driver that might be better than that one. But on the safe side, I would try the newest beta driver Today.
If that doesn't work, try this also - forums.steampowered.com/forums/showpost.php?p=25540386&postcount=5
I did that on my friend's GPU and it ran perfectly fine. Tell me how these go. I'll still help if it doesn't work.
finally after alot of research and fiddling with config files.. i got the game going. oh and i rolled back to 11-10 ati drivers along with the 3 specific rage ati drivers including the one you mentioned. the game runs yes and still has the odd graphic issue while running but still works all the same. the only problem i have now is the random crashes whenever i leave certain locations and the most recent few being after i fire a rocket at a bandit car.. how unusual