I'm not sure whether my bug is exactly the same. I'm running the ZaReason Terra HD which came with Ubuntu Netbook Remix 10.10 installed. When I see the login screen on startup, most of the time I am the first one listed. Every now and then (seemingly random), though, the account Guest User (a passwordless account I created) is moved to top.
$ ck-history --frequent vincent 2449 gdm 296 guest 8 (null) 7 mpd 2 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. https://bugs.launchpad.net/bugs/665466 Title: GDM does not sort users by login frequency -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs