I'm running SpamAssassin version 3.0.5. (On Perl 5.8.6). I've checked the the bugzilla page about this bug. I dont understand a damn thing 8-|... I guess that i need to update my spamassassin setup and I'm scared. I'm gonna check the wiki for advice on spamassassin updates, but first, get a horse shoe, and recite a hundred mantras !
Updating from 3.0.5 to the current version isn't particularly painful; certainly not as hard as 2.6 to 3.x was. The amin thing to look out for is things that have moved to plugins, and you will have to enable the plugins to keep your current functionality in some cases. Just look for the *.pre files and uncomment anything that seems appropriate.
