Can someone help me out here?  I got the PC version a few weeks back, played it a bit with my 8800 GT, and it actually ran ok.  I upgraded to a GTX 465, Ran the game at the same settings that I used with the 8800, and everything was fine, just at a much higher framerate.  ANyways, I hit 'Optimal Settings' and everything pretty much gets maxed out.  I try to play it and the framerate is like 2FPS.  So my issue is that even when I try to reset my settings to even lower settings than before, I'm still getting about 2FPS even in the menus.  Help!!