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Helpful answers
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Feb 8, 2012 2:38 PM in response to zachc1by EZ Jim,• If this is the Airport update you mean: http://support.apple.com/kb/DL1481
(1) Restart Mac
(2) Use Disk Utility to repair permissions
(3) Try the update again using the instructions
in the http://support.apple.com/kb/DL1481 article.
• If you mean trouble with 24 inch cinema display, check connections.
For more details, see this article: http://support.apple.com/kb/TS2400