I had similar problems, which started after I changed my system from i386 to amd64. I also had locale problems, because my .xsession specified locales which I had not generated. After reconfiguring my locales in a consistent way, the tracker problems disappeared.
Best, Simon -- Simon Pepping -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
