If outlook is in the startup folder remove it.
Run the Detect and Repair utility that comes with Office 2000
The following procedure forces Detect and Repair to run:
1. Click Start on the taskbar, point to Settings, and then click Control Panel.
2. Double-click Add Remove Programs.
3. Click Microsoft Office 2000, and then click Add/Remove.
4. Click Repair Office.
5. Click Repair errors in my Office installation, and then click Finish
This will find the errors and repair the installation. Also, I would delete the users office profile and re-create it.
1. Right click on Microsoft Outlook
2. Select Properties
3. Select Show Profiles
4. Remove the user profile
5. Recreate the profile
Good Luck
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