I just installed the 2.4.6 update, and then ran the Support Assessment. It had "Apache:DBI" marked as critical (although I know at some point in the past this was OK... or I'm completely daft... or both :-)

Anyway, I found that in scripts/apache2-perl-startup.pl the "use Apache:DBI" was commented out. I simply uncommented that single line and restarted apache. All was well, and the Assessment now gives "OK" for the Apache::DBI check.

However, since I supplied no credentials or anything, this seemed too easy, so I'm wondering:
  

Thanks,

Mike