Can't boot Fedora 17 after software update
Following installing the latest software updates for Fedora 17, after rebooting I can't get to the login screen. I get a far as the "fireworks" background image appearing and then for a split second it flashes to a black background with:
[OK] Started WPA Supplicant daemon.
[OK] Started Sendmail Mail Transport Agent.
Started Sendmail Mail Transport Client...
and then it goes back to the fireworks process and cycles constantly back and forth between the screens without getting to the login screen.
It's so fast I had to take a video with my phone and slow it way down in WMP to get a screenshot (attached).
I'm completely stumped, any ideas would be greatly appreciated !