Mac OS X 10.2.5 Update: Address Book Does Not Open After Updating Mac OS X 10.2.4

Symptom

Address Book does not open after updating from Mac OS X 10.2.4 to 10.2.5; a message appears "The operation could not be completed. An unexpected error occurred (error code 1000)."

Address Book's icon (in /Applications) is blank (generic).




Solution

1. Delete the Address Book application (which has a blank icon) from the Applications folder.
2. Move the original Address Book application back into the Applications folder.
3. Install the Mac OS X 10.2.5 Update (MacOSXUpdate10.2.5.pkg) again.

Important: If Software Update was originally used to update to Mac OS X 10.2.5 from Mac OS X 10.2.4 but you did not save the file "MacOSXUpdate10.2.5.pkg", download the standalone installer from Apple Featured Software (http://www.info.apple.com/support/downloads.html).