Description of problem:
After a fresh install of F13, the default user is not listed in gdm.
Version-Release number of selected component (if applicable):
Fedora 13. Sorry, I'm running F12, ATM.
Happened once after installing F13.
Did not happen after installing F12 (as a test install before installing F13).
Steps to Reproduce:
1. Install F13.
2. Configure a default user when prompted.
Gdm greeter lists "Other..."
Gdm greeter lists the default user and "Other...".
Login is still possible by typing in the name and password of the default user.
Installation was with an F12 boot.iso CD and a manually specified link to a development/f13 mirror.
This sounds like the same bug:
Bug 561590 - username list has been removed
Fedora Bugzappers volunteer triage team
*** This bug has been marked as a duplicate of bug 555593 ***