can't login via gdm

[Morgan Read <mstuff@read.org.nz>]

Hello List,

I ran the following to change my users UID & GIDs - but, now I have no
graphic gdm login.  I have no problem with a terminal login and the
same worked on a terminal based server.

After boot, gdm attempts to start but fails with a blinking cursor in
the top left corner - I can switch to tty2 etc.  Does anyone know what
stupidity I may have inflicted upon myself?

Commands executed:
# usermod -u 1003 guest
# usermod -u 1002 joe
# usermod -u 1001 blow
# groupmod -g 1003 guest
# groupmod -g 1002 joe
# groupmod -g 1001 blow
# find / -user 1002 -execdir chown 1003 '{}' \;
# find / -group 1002 -execdir chgrp 1003 '{}' \;
# find / -user 1001 -execdir chown 1002 '{}' \;
# find / -group 1001 -execdir chgrp 1002 '{}' \;
# find / -user 1000 -execdir chown 1001 '{}' \;
# find / -group 1000 -execdir chgrp 1001 '{}' \;

Thanks,
Morgan
-- 
Morgan Read
E mstuff@read.org.nz
(GM)