Most Debian users know that you probably shouldn't do a dist-upgrade from an old system -- you upgrade and then you dist-upgrade. Or perhaps this isn't even true, it's tribal lore to avoid getting eaten by the wild beasts of bork that roam around the village walls at night. Anyway that's what I did -- an upgrade, let it chunk for a while, then a dist-upgrade, check the list to make sure it didn't decide to remove one of my kidneys to satisfy the priorities of the bearded demon that lives inside apt-get, OK, let it go, all is well, reboot.