Mac OS X 10.5: MobileMe Sync menu icon spins constantly
Symptoms
After entering a password for your Mac OS X screen saver, the MobileMe Sync menu icon may spin constantly.
This may happen if a dialog asking for confirmation of sync data changes opens while screen saver is running and the screen saver requires a password. (The dialog window is not accessible via the Dock.)
Products Affected
Mac OS X 10.5, .Mac Sync, MobileMe
Resolution
Press your "Application windows" Exposé function key (check Dashboard & Exposé preferences in System Preferences if you're not sure which button is assigned), then select and confirm the Sync dialogue. The sync should complete as expected.