Clean install of Fedora 12 will not bring up login screen after upgrade

[John Nissley]

I did a clean installation of Fedora 12 from the CD today and the first 
boot was fine.  I could log into the computer and get the graphical 
interface.  I then did a yum upgrade and 500 MB later the upgrade was 
finished.  I then rebooted the computer and now the boot gets stuck at 
the f that looks like infinity which is just before the login screen 
would display.  I can boot into single user mode and also get into text 
mode but the graphical mode will not give me the login screen.  I saw 
that there was not a /etc/X11/xorg.conf file so I ran Xorg -configure to 
create one but that did not help either.

Any ideas on what could be causing this?


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