Ever since upgrading to Snow Leopard, I have noticed an issue with Expose and here is my best way of describing it: When I 4-finger swipe up on my trackpad, the windows go to the side and the desktop is shown. When I 4-finger swipe down for the windows to come back, the windows go down like they should and instantly go back into Expose mode and the desktop is shown. Sorry if I did not describe it well enough, but it is the best I could do. Any fixes/ideas? Thanks.