The problem has probably been identified; have a look at this message (and maybe following messages) in the gdm mailing list in gnome:
http://mail.gnome.org/archives/gdm-list/2007-August/msg00112.html -- gutsy: at-spi-registryd not starting automatically during gdmlogin https://bugs.launchpad.net/bugs/135903 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
