Power outage resulted in loss of login screen view...
I had a similar situation where I could no longer get the login screen to appear.
I too had installed the 'Perfect Fedora 9 Server' setup, however everything was running fine up to an unexpected power outage... after restart I could no longer get the login screen to appear.
Removing the line "/SENDMAIL/ANY/SHELL" from the /etc/shells fixed the problem.
Thanks for the solution!!!