I attempted to log out after just getting a program (molpro) up and running successfully. The logout failed, so I rebooted and got only the text-based login. The system tries and fails to give me a graphical login. I would like my KDE desktop back !!! How do I do this?

Hi there;
I had the sam problome that you have and i fixed it by typing the init 5 command.
Try to type - init 5- in the command line and it should attempt to start the x window.
Try to open the XF86Config by typing less /etc/X11/XF86Config check it if it's setup correctly. Also you have a backup copy of XF86Config in the same directory type /etc/X11/XF86Config.backup
try to check the depth color of your monitor you can set it to 8.

see ya

Okay, I've got my desktop back!

I just used xfs & (entered, about a line and a half of text appeared) and then startx.

Before this, when I checked the status of xfs (using service xfs status) it said it was dead even when I had just started it (service xfs start). Now I got an xfs running message and I could access GNOME. I halted the system, booted it up again and everything was back to normal - I got a graphical login and could access KDE.

I think my problems were caused by running a program in /root without enough memory - not really font-related at all ...