Symptom
Software Update stops responding when you install Apple Remote Desktop 1.2 on a computer with Mac OS X 10.1.4. This may occur just after optimization is completed.
Note: This issue may be avoided by updating to Mac OS X 10.1.5 prior to updating Apple Remote Desktop.
Solution
When this occurs after optimization, the software has actually been installed. To resolve the responsiveness issue, follow these steps:
1. Choose Apple menu > Force Quit.
Note: If the Finder is not responsive, try pressing Command-Option-Escape to open the Force Quit dialog.
2. Select Software Update, and click Force Quit.
3. Quit and reopen System Preferences.
4. Verify the addition of the Remote Desktop preference pane to the Internet and Network section of System Preferences. This verifies that the software was installed.