I could permanently fix the issue by uninstalling cups and avahi-daemon plus their automatically installed dependencies. I reinstalled cups, cups-pdf and cups-bsd using
aptitude install --without-recommends cups cups-bsd cups-pdf -- Jan Dittberner - Debian Developer GPG-key: 4096R/558FB8DD 2009-05-10 B2FF 1D95 CE8F 7A22 DF4C F09B A73E 0055 558F B8DD http://ddportfolio.debian.net/ - http://people.debian.org/~jandd/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org