[Samba] Problem mounting Samba shares from a Linux machine

[Mandy J]

Samba gurus,

We installed Samba 3.4.6 binaries on RHEL 5.0, added the Samba server
to an ADS domain and used winbind to map the ADS users to local UNIX
users. We are able to access the Samba shares from Windows machines
using the domain user accounts. However, we are having problems
mounting the samba shares from Linux machines that also joined the ADS
domain and used winbind. Although the mount command completed without
an error, the mount point has invalid permission bits, owner and
group, and cannot be accessed. The same Linux machines can mount
Windows shares in the same domain.

[root at example-34 mnt]# ls -l
total 8
drwxr-xr-x 2 dmuser 10000 4096 Mar 14 21:57 software
drwxrwxrwx 1 root  root     0 Mar 15 14:32 user
[root at example-34 mnt]# mount -t cifs -o user=EXAMPLEDM/dmuser
//example-84/public/software software
Password:

[root at example-34 mnt]# ls -l
total 0
?--------- ? ?    ?    ?            ? software
drwxrwxrwx 1 root root 0 Mar 15 14:32 user
[root at example-34 mnt]# cd software
[root at example-34 software]# ls
ls: .: No such file or directory

Any ideas?

Thanks,
Mandy