Cmd-Tab suddenly stopped working, and my Dock is unresponsive, what do I do?

Posted by Peter Burns on Super User See other posts from Super User or by Peter Burns
Published on 2009-07-18T03:59:13Z Indexed on 2010/03/18 17:01 UTC
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command ?+tab? and my Exposé shortcuts have stopped working, and clicking/mousing over dock icons has no effect.

What's wrong? What can I do to get things back?

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