This sounds like a video or OpenGL issue. The first thing to would be to update your video card drivers.
Since you've done that, then the next thing to try would be to see if you can get into a game by changing the 3d or OpenGL mode. To do this, go to the game's main screen, then to settings > 3d & facegen.
Try disabling 3d features/OpenGL support and se if the game works without that. You can also try each different OpenGL mode to see if one of them lets you into the game with 3d on.
If one of those settings works for you, let us know which one it is. If none do, then try playing out a game with
debug mode on and post the resulting trace file here for us to check out.