On Sun, 05 Dec 2010 09:40:05 +0100, abdelkader belahcene wrote: > * thanks > that is the problem, no gdm.cong on centos, since it is working, the > file exits elsewhere, may be with another name. thanks again But this is a Debian list, how can we know? :-) Well... let's see. Google says CentOS 5 does not have a "gdm.conf" file, instead it is placed under "/etc/gdm/custom.conf" so you'll have to edit that file. Greetings, -- Camaleón