Here's quote from Thomas:
(09-04-2010, 12:38 AM)Thomas Wrote: 3. Bad cache.
It might be a that one of the cache files are busted. Uninstall game, then reinstall and see if that helps.
4. Install latest patch
See Problem A.8 for download link!
5. Turn off post effects.
Go to options->graphics->advanced and here you can turn on/off all of the different effects in the game. Try turning all off and see if that helps. If the freeze only happens at a certain place (Picking up third diary in Archives has been reported) then it might work to turn them back on after the specific event.
6. Turn off SSAO.
Turn off SSAO in the launcher and see if that helps. It is known that some cards can freeze when rendering SSAO, meaning the game would get stuck after the first logos and text (when menu is supposed to show).