Okay, I have a working GDM theme now, it mostly uses the work done by Tobias Oelgarte for Avio. If you'd like to try it out, you can add the following file to the System > Administration > Login Window theme area: http://duffy.fedorapeople.org/art/infinity/FedoraInfinityGDM.tar.gz Give it a try and let me know if you see any issues. ~m