Let me explain.
I had this problem BEFORE the component upgrade, and spent few hours trying to understand what was happening, without success.
So i decided to try to upgrade that component. Didn't mind for backups, because that was a fresh install on a fresh ubuntu 6.06 LTS machine, with only few test accounts created.
Log size, owner/group/permissions and clamav should be ok because it is a fresh install, and I did just few days ago a fresh install following the same identical howto (from howtoforge), without problems.
Now i've formatted and repeated the installation, let's see if the problem persists
Bye.