Reverting to release notes that make haiku seem wordy, Apple has released something called OS X Mountain Lion 10.8.2 Supplemental Update 2.0 that claims to address “an issue with Keychain that can affect 2012 Mac systems.” It’s recommended for all Macs introduced in 2012, but there’s nothing else that hints at what it fixes or how serious the “issue” might be. It’s available via the App Store’s Updates screen, and if it doesn’t appear for you, it’s presumably not necessary for your Mac. (Free, 26.65 MB)
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Fixing Save as Adobe PDF Crashes
There have been many reported instances of the "Save as Adobe PDF" workflow crashing regardless of application, but precious few workarounds or resolutions. In troubleshooting, I discovered that there were three instances of the "Save as Adobe PDF.action" in three different locations: /Library/Automator; ~/Library/Automator; and /System/Library/Automator. By eliminating all except the version in /System/Library/Automator, the workflow started behaving, and I was able to cut PDFs directly from the Print dialog.
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John Zielinski
OS X Mountain Lion 10.8.2 Supplemental Update 2.0
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Does this address my brand new (purchased 21.11.12) Mac Mini's inability to upgrade from 10.8.1? Apple's software download page says 10.8.2 is a system requirement for the download. Confusing...
I very much doubt it will address your problem, unfortunately. I would recommend trying the 10.8.2 Combo update at http://support.apple.com/kb/DL1581 to see if that will work better than a delta update.

