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The new caching of preference settings in OS X Mavericks may frustrate some approaches to manual adjustment of program settings.
Applications in OS X save preferences to property list (.plist) files in various preferences folders; however, sometimes multiple copies of a specific plist file may accumulate in the same folder.
More on .plist corruption: Applications other than host (owner) write to some .plist files
Readers ask, we answer.
Problems using iPhone Remote? (Telekinesis) -- Delete .plist
Wireless connectivity (AirPort) issues under Mac OS X 10.4.8? Delete specific .plist files
If you browse through the user library in OS X Lion, you may see a number of .plist.lockfile files in your preferences folder. Here is what these and other plist subtypes are all about.
Preferences Files: The Complete Story (Part VII): .plist file tricks
iTunes 7.0 (#4): Persistent crashes: Delete .plist files, turn off plug-ins; fix for broken podcasts; selecting libraries; more
Preferences Files: The Complete Story (Part V); How .plist files become corrupt and troubleshooting the results