Hi Robert,

On 17 Sep 2014, at 11:26 am, Robert Miller Eves <[email protected]> 
wrote:

> 2.16GHz Intel Core Duo  OS 10.6.8y
> Sound/Audio control panel has vanished from System Preferences.
> I've tried re-installing the O.S to no avail. Any clues?
> 

Do you mean the 'Sound' pane in System Preferences is missing?

If preference panes go missing, follow these instructions:

1. Quit System Preferences (if its open).

2. Open your User Folder, and then navigate to the ~/Library/Caches folder. ( 
The "tilde" symbol "~" is an abbreviation for your Home folder.)
If you're unsure where your Home folder is, use your "Go" menu to take you 
there.

3. Delete the “com.apple.preferencepanes.cache” file.

4. Open System Preferences, it should work normally.

Cheers,
Ronni

17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
2.3GHz / 8GB / 750GB @ 7200rpm HD

OS X 10.9.4 Mavericks
Windows 7 Ultimate (under sufferance)



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