Can't start gdm

[Joe Zeff]

I tried installing kdm and modifying /etc/sysconfig/desktop to use it, 
but X is still trying to use gdm.  I'm not sure, but it might be because 
I was told to specify KDE, not KDM.  However, I'm now getting a log file 
from gdm that contains this:

gnome-session[1537]: ERROR: Unable to open '/etc/dconf/db/gdm', 
specified in dconf profile

Checking, there isn't any such file, and the dconf profile reads as follows:

user
gdm

I'm not sure what's going on, but I'm going to try uninstalling and 
reinstalling gdm, as I'm not sure at this point that simply having yum 
reinstall it is sufficient.  (See, I do learn from other people's 
experience.)