The Vulnerability Protection engine has been corrupted

This seems to have started upon starting up about a week ago. So far I have run LiveUpdate about wxy times, reinstalled, and have reinstalled the OS. So far, no luck.

 

Running OS v10.6.4. Can' t tell which versions of Norton (LiveUpdate 5.1.2(22) completes indicating the same versions were updated).

 

Thanks for any advice.