gdmsetup is severely crippled

Binary package hint: gdm

After upgreding from 9.04 to 9.10 gdmsetup has almost no options, compared to the usual behavior.

I wanted to disable the user listing at login and the option has disappeared.

Expected UI can be, for example, here: http://www.simplehelp.net/2009/05/21/how-to-change-the-ubuntu-login-screen/

ProblemType: Bug
Architecture: i386
Date: Tue Nov 3 15:51:29 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gdmsetup
NonfreeKernelModules: nvidia
Package: gdm 2.28.1-0ubuntu1
ProcEnviron:
 LANGUAGE=pt_PT.UTF-8
 LANG=pt_PT.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: gdm
Uname: Linux 2.6.31-14-generic i686