> .... hi there, i am still fairly new to debian, and first thing is that i had to try the amd64 port ;) anyways, yesterday i downloaded http://debian-amd64.alioth.debian.org/install-images/sid-amd64-netinst.iso booted and installed from it. after the first real login to the system aptitude was still working all right. then today apt-get downloaded some update package to aptidude, and ever since aptidude also dies with this error. maybe this helps. cheers, andy