Macintosh Manager, Mac OS 9 Multiple Users: Login unexpectedly quits after updating Classic components

If you use Mac OS X 10.3 and either Macintosh Manager or Mac OS 9 Multiple Users on the same computer ("dual boot"), users won't be able to log in to Mac OS 9 after updating Classic components in Mac OS X 10.3. The login routine will unexpectedly quit, and the user will be returned to the Login Window.
This only affects Mac OS X 10.3 to 10.3.3. Update to Mac OS X 10.3.4 or later to resolve the issue, and allow the updated system to update your Classic components again.

The specific Classic item that resolves the issue is Apple Menu Options version 1.2.1.
Published Date: Feb 17, 2012