I am a relatively new linux user on a Fedora Core 5 system. Today I tried to start a new session as root and then use the ALT+CTRL F8 shortcut to switch users and I end up at a session that has absolutely nothing but a blank screen, no prompt or anything. Though I can type on it none of the commands I tried did anything, even attempting to start KDE (though I may have done that wrong). I could, however, get to my new session with F9. This F8 session starts up at boot without me doing anything, any ideas on why or what this screen is?

Also, when I hit CTRL+ALT+DEL I did not get a screen prompting to end the session, but rather my machine rebooted.