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I select a file, hit Space for Quick Look, and then hit Space again to hide the window. Finder hangs and in some cases beachballs for a while before becoming responsive again.

Other notes:

  • It gets worse over time. If I restart Finder the hang time is nonexistant. The more I use QuickLook, the slower it is. The hang is ~3 seconds after using (opening and closing) QuickLook 10 times. It only gets worse from there.
  • Actually showing the file is always instantaneous in all cases
  • Both /Library/QuickLook and ~/Library/QuickLook are empty.
  • This is a Mid 2012 MacBook Air running 10.8.2 with all the software updates.
  • Restarting the entire machine doesn't help any more than restarting Finder.
  • Update: Other users on this machine don't experience this problem.

Any ideas?

share|improve this question
Have you tried resetting the Quick Look cache with qlmanage -r? – user495470 Feb 12 '13 at 17:36
Just ran qlmanage -r and qlmanage -r cache. No effect. Restarted Finder. Same problem. – trhaynes Feb 13 '13 at 18:24

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