Mission Control stopped working...

[BAC5.2]

Mission Control has stopped working.

Pushing the F3 button shows only open windows, but no spaces/desktops. Keyboard shortcuts (set to OPT+arrows) still work.
4-finger swipe still moves between spaces.

I just did a restart, and that didn't fix anything.

When doing a 4-finger swipe up, the background image doesn't shrink like it used to to show the different spaces.

Also, when doing the swipe up, if I click where a desktop SHOULD be (Mail and iCal, I run in full-screen mode all of the time, so they have their own desktops) I'll go there. So it's as if Mission Control works, but just doesn't quite represent itself graphically.

Lion has been working fine, up until now.

Any ideas?

Edit - Mission Control also does not work when clicking the Mission Control "app". Very strange.

 

[WhoDaKat]

Strange...

The exact same thing happened to me today. Except I get no response when I try to start it. Like it doesn't even exist.

 

[Steve's Barber]

Mission Control has stopped working.

Lucky bastard!

 

[BAC5.2]

Lucky bastard!

What?

Spaces/desktops are massively useful. Mission Control was a very welcome change.

That said, it suddenly started working again. Go figure.

 

[mduffy]

Same problem...

I have had the exact same problem for the past two or three weeks. No clue what caused it, it seemed random.

Any idea what caused mission control to start working properly again?

I would be much obliged for any guidance on this!

 

[Jagardn]

Lucky bastard!

He's in the "No Spaces and Expose is the end of the world" camp.

 

[stefan1975]

Mission Control has stopped working.

maybe yours cowered in shame and decided to hide until someone gave it it's spaces back.