After investigation, the error you are seeing has to deal with the Cyrus thing, and doesn't prevent anything from working. This has been patched already in the version that is on our Debian private repository, and an upload in SID will follow.
As a consequence, I'm changing the severity of this bug to minor, as really, this is not a big issue here (just quite ugly on your screen). Thomas -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org