After enough digging, I've found the problem: The user's UID was below 1000 (501, to be exact).
Fixing that appears to have resolved the problem. This bug can be closed. -- Troy Telford ttelford.gro...@gmail.com -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org