Duplicate 'com.apple.xxx' preferences
I've only just noticed when opening my user preferences folder that it's blown out to thousands of items.
It seems that my Apple applications (i.e. iTunes, iCal, Quicktime, etc) are creating multiple preference files over time.
Some only have one duplicate, for example:
com.apple.internetconfigpriv.plist
com.apple.internetconfigpriv.plist.kDDo7qA
In the case of heavily used applications like iTunes and Quicktime, the duplicate files run into the hundreds.
I saw this previous discussion where a user had problems with regular applications doing this:
https://discussions.apple.com/thread/2237574?answerId=10611481022#10611481022
My problem seems limited to Apple applications only - no third party applications seem to be affected.
I'm not sure how to stop these duplicate preferences files being created.
iMac, Mac OS X (10.6.8)