Pay attention to the McAfee VirusScan tip. It's likely the root of the problem.
The patch is available at:
Fixed Issues:
1. Fixed Outlook Express inbox deletion issue.
2. Resolves Outlook Express data corruption issue.
3. Fixed OAS scanning of boot infected floppy.
4. Resolves OAS scanning for boot-infect floppy.
5. Enhanced scanning of compressed archives.
6. Instant Updater enhancements.
7. Fixed crash after canceling McAfee Firewall Interview.
8. Resolves error messages after canceling McAfee Firewall interview.
9. Fixed FreeCell and Solitaire compatibility issue.
10. Resolves compatibility issues wiith FreeCell and Solitaire.
11. Fixed HAWK crash for invalid emails.
12. Resolves issues with HAWK and invalid emails.
13. Fixed navigation issues when navigating between other McAfee products. Resolves navigation issues with other McAfee products.
14. Fixed intermittent license expired message.
15. Resolves incorrect license expired messages.
16. Allows scanning of long file names and paths.
17. Enhanced Scan Summary page.
18. Enhanced Home page status.