I discussed one possible solution to the subject problem in tip 2764 - Windows 2000 Add/Remove Programs tool displays incorrectly?.

If the above solution does NOT correct the problem, it may be caused by a bug in Internet Explorer.

To resolve the problem, reinstall Internet Explorer. See How do I reinstall Internet Explorer 6.0 in Windows XP?

After restarting your computer, if the problem persists:

1. Restart your computer and press F8 to select the Advanced startup options.

2. Start in Safe mode with networking.

3. Log on as the local Administrator. Windows Update should start and update Browsing services, Internet tools, and System services.

4. Restart the computer.

NOTE: Other Add/Remove Programs applet problems are documented at:

Tip 2764. Windows 2000 Add/Remove Programs tool displays incorrectly?
 
Tip 5001. Installing IE 5.5 or IE 6.0 on Windows 2000 may cause the Add/Remove Programs tool to hang or misbehave?
 
Tip 3860. Windows 2000 'Add/Remove Programs' issues Mshta.exe error?
 
Tip 4157. The Add/Remove Programs tool displays as multiple dialog boxes?
 
Tip 6032. The Windows 2000 Add/Remove Programs applet does NOT open?
 
tip 10045. Add/Remove Programs applet reports 'Object doesn't support this property or method'?