F13: only others user is available at login

[Antonio M]

When I boot only Others is shown in the list of available users, then
I click on the login window and I get the blank entry for user and
password, so I can get inside fine, if I logout and login gdm is
working fine showing list of all users.
Is it a bug or some misconfiguration on my system??

Tnx

-- 
Antonio Montagnani
Skype : antoniomontag
SIP: antoniomontag at ekiga.net