Forum:Menu causes crashes

Hi there. Just installed bioshock 2 and found that when I enter an in-game menu or try to hit 'ESC' to go to the main menu, my computer all but freezes (ie, 1 frame every 5 - 10 seconds!). When I ctrl-alt-del, I see that my processor is pegged! I meet all the recommended specs and the gameplay is smooth as can be with all settings maxed. It seems to be related to just the menus.

Any others out there with the same problem? Any know fixes?

Thank you,

tupera