Performing a fresh install goes Ok but upon booting a "failed to execute login" error appears and the system momentarily drops back to the command line before presenting a login screen preloaded with "tux". Trying to login with an empty password fails, using "root:root" succeeds. As root changing the tux password to something useful then retrying to login as "tux" with the password produces the same failure.
Anybody got any ideas where to start poking around on this?