Removing right-command as "show desktop" I just got my Mac several months ago, and set my right-command as show desktop shortcut. Now, I want to remove it, but I totally forget how to remove this silly thing. I have checked several places as shown in the images below, but both shows that show desktop shortcut is F11, and I don't know where else should I find the configuration where I set my right-command as the show desktop, so could anyone help me?

PS: I use OS X Lion 10.7.2
For those who like me didn't find the right answer ;-).
I accidentially turned on "Show desktop" on left "Command" key.
It has nothing to do with "Keyboard shortcuts" preference!

Go to "Preferences" -> "Mission Control" and change "Show Desktop" key from listbox to something useful.

Remember even if it doesn't show "left Command" key it uses it ;-), so change it.