Mac OS X - System Preference Pane won't open

Question

I'm working on a System Preferences Pane. It opens fine on some computers, but on other Macs (all running 10.5.5), the preference pane refuses to load and simply hangs, spitting the following into the console:

11/9/08 8:38:50 PM [0x0-0x31031].com.apple.systempreferences[369] Sun Nov 9 20:38:50 Macintosh.local System Preferences[369] <Error>: Failed to create window context device 
11/9/08 8:38:50 PM [0x0-0x31031].com.apple.systempreferences[369] Sun Nov 9 20:38:50 Macintosh.local System Preferences[369] <Error>: CGWindowContextCreate: failed to create context delegate.
11/9/08 8:38:55 PM [0x0-0x31031].com.apple.systempreferences[369] Sun Nov 9 20:38:55 Macintosh.local System Preferences[369] <Error>: Failed to create window context device

Any ideas why this is happening?

Thanks.

Answer 1

It might be very possible that a preference file associated with the particular system preference pane is corrupted.

You can try removing the associated preference file, with the System Preferences closed, from your user ~/Library/Preferences/ folder and restarting your machine. Usually for Apple System preferences that file would be ~/Library/Preferences/com.apple.systempreferences.plist.