gdm and Xclient

[Bill Smith]

Another problem with my newly installed gnome setup, if I enable gdm it 
complains that "this system has no Xclients file, putting you into a 
failsafe terminal session", I have never seen that before and it is a 
little annoying, I have done a google on Xclient and not really come up 
with anything useful, except a lot of comments verifying what I am seeing.
So my question is how can I set up an Xclient to satisfy gdm's desire, 
and what did I miss to get this in the first place?
Cheers

-- 
Bill