For some reason, I'm having problems with Expose. I have F9 set to show all windows and F10 set to show desktop. For some reason "show desktop" doesn't work. If I'm in finder it gives me the little error noise, otherwise, nothing. SO, I decided to see if the other expose commands worked when set to F10...no problem. So then I set "show desktop" to F9...still didn't work. So, no ability to show the desktop was frustrating me. I restarted. F10 show desktop worked fine...for a while. Now it's no longer working. Any insight? Anyone else had this problem? Grateful as always!