Rawhide with builds no later than 20130227 doesn't boot here anymore.
It stops at the Fedora logo prior to displaying GDM but with gdm "logged
in". Ctrl+Alt+Del opens a nasty shutdown dialog with three buttons. Two
of them (Restart, Cancel) can be blicked, but don't do anything. They stay
pressed down. The 3rd one (Shutdown) cannot be clicked.
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Fedora release 18 (Spherical Cow) - Linux 3.7.9-201.fc18.x86_64
loadavg: 1.38 1.25 0.56