Expose' Stops Working all of a sudden

Title says it all. I don't know why. I have tried it via hot corner and the F12 button....still nothing.

Any ideas?

Well, the F12 button is generally reserved for Dashboard, not Exposé, so that should answer that one.
As far as the hot corners, I would double check your System Preferences. If it is checked, then uncheck it and then recheck it.
Also a logout and login should remedy it.

Repairing permissions could also help.


Edited to add:


W00T! 850th post!

Did you find a fix for this? I have this problem every so often. The last time, I fixed it by going into system prefs, then the Expose tab. Everthing looked correct, and when I exited it worked.

This time its not working though. Any ideas? I guess Ill log out, log back in.