I played through the prologue and about half of chapter one with no problems and great graphical performance. All of a sudden, a massive framerate drop occurred making the game unplayable. If I restart my save I get about two minutes of play before the massive slowdown hits again. Further, if I start a new game I experience the massive drop right away, even though I had previously played through the areas with no problem. I have the latest beta nvida drivers and have uninstalled 3d vision. I have even reinstalled TW2 but the massive drop is still there. I have defraged my harddrive. I emailed support a week ago and they have yet to get back to me. Any thoughts?

I have the same problem. After a few minutes of playing my framerate drops to 8. Nvidia driver 275.33 doesn't change this unfortunately. Either my system can't handle the game or I have to wait on a patch. A tip for you: download and install the 260.99 nvidia driver if you have a geforce card that is. For some people this helps very much, not for me though. Worth a try... Goodluck

you've set your video memory too low. very high uses 700-1000mb. so if you have a 1gb card, use that.