ISight audio no go since System Update

Since last week's System Update my external iSight mic is no longer available as a choice for audio input in any app or in System Preferences->Sound. Have checked all the heretofore posted remedies to no avail. Works perfectly when I boot from my most recent backup disc (no Sys Update from last week). I see some others have had audio AND vid probs but mine is audio only. I get vid in all apps but no mic recognized. Any ideas or do I have to wait for another update from Apple to fix the prob?
Jimbo

WizOfAhhhs wrote:
Since last week's System Update my external iSight mic is no longer available as a choice for audio input in any app or in System Preferences->Sound. Have checked all the heretofore posted remedies to no avail. Works perfectly when I boot from my most recent backup disc (no Sys Update from last week). I see some others have had audio AND vid probs but mine is audio only. I get vid in all apps but no mic recognized. Any ideas or do I have to wait for another update from Apple to fix the prob?
Jimbo
Well done on the good troubleshooting and clear explanation in your post, Jimbo!
There is no need to await a later update. My external iSights work with the latest OS system software.
Because your same iSight (and Firewire cable?) works with your pre-update system, perhaps your download or update installation had problems. Run the update again, this time with the Combo version as follows:
  • Connect external iSight.
  • Restart Mac and then use your Mac's Disk Utility to repair permissions.
  • Download and install http://support.apple.com/kb/DL1048
  • Repair permissions again as soon as the restart completes the Combo Update.
  • Then check to see if iSight's mic is available now.
If you still have problems, the troubleshooting suggestions here may give you some more ideas:
  http://www.ralphjohns.co.uk/EZJim/EZJimpage4.html
Message was edited by: EZ Jim
Mac Pro Quad Core (Early 2009) 2.93Ghz w/Mac OS X (10.6.4)  MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.4)
LED Cinema Display  G4 PowerBook  1.67GHz (10.4.11)  iBookSE 366MHz (10.3.9)  External iSight

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