Dock.prefPane error loading in Snow Leopard
Dock.prefPane “The document ‘Dock.prefPane’ could not be opened. System Preferences cannot open files in the ‘Mac OS X Preference Pane’ format.” Oh that makes perfect sense, a default preference pane can’t be opened by the System Preferences? What?? Maybe this is an April Fools joke from System Preferences… but a reboot fixed it.