I have my bottom left and top right corners set for expose. Sometimes expose works perfectly fine: I move mouse to corner, expose kicks in and move windows apart, I move mouse away from corner and click on a window. All is well. However, sometimes when I move the mouse to the corner, expose kicks in and when I move my mouse away to click on a window, the expose goes away and all the windows go back to their normal positions. It's as if I move my mouse pointer to the expose hot corner twice in a row without clicking on anything, even though I'm only doing it once. This is really annoying me because I think it's happening more and more and it doesn' help if I change the hot corner for expose. I can't seem to reproduce the problem though. Is anything else experiencing anything similar?