> I think that you can exclude usernames from the list on Centos 6 > by making their user number less than 500. That doesn’t help me, as I have no users defined in the /etc/passwd file, and the UIDs are defined in a corporate database that match the employee number. > You can (also) exclude entries by enumerating them on an "Exclude=" > line in the greeter section of /etc/gdm/custom.conf . Not what I had in mind either, but this *may* help. > Alternatively, you can suppress the list totally by changing the > default of gdm->simple-greeter->disable_user_list with the gconf > editor. I still like to see my name if I’m the only one that uses the system, and same goes for others. What I am really looking for is where gdm (or whatever) caches the list of users who have previously logged in to a system. I have tried the brute force approach (grep -R) without success. Alfred