[gdm-list] GDM user authentication problem

["Aldo Foot" <lunixer gmail com>]

Hi - I'm new to GDM and need some advice.
I searched the archives and the web but found nothing relevant to mandriva.

I have a user that has problems login into his system.
The log files show this error:

Jun 26 17:12:39 man190 gdm(pam_unix)[5692]: session closed for user jdoe
Jun 26 17:12:47 man190 gdm(pam_unix)[5692]: authentication failure;
logname= uid=0 euid=0 tty=:0 ruser= rhost=  user=jdoe
Jun 26 17:12:51 man190 gdm-binary[5692]: Couldn't authenticate user
Jun 26 17:12:57 man190 gdm(pam_unix)[5692]: authentication failure;
logname= uid=0 euid=0 tty=:0 ruser= rhost=  user=jdoe
Jun 26 17:13:01 man190 gdm-binary[5692]: Couldn't authenticate user
Jun 26 17:13:05 man190 gdm(pam_unix)[5692]: bad username []

Any pointer as to what causes that?
I'm running Mandriva Linux release 2006.0 (Official) for x86_64 and
gdm-2.8.0.4-1.3.20060mdk.

thanks.
~af