Mandriva 2010.0 will not mount as a user only as "nobody"

I have two machines running Mandriva Linux. One running 2008.0 and one 2010.0. 
The 2008-machine mounts the hard disk of the 2010-machine. But I am not able 
to make the 2010-machine send a request for mounting the 2008 hard disk as 
anything else but nobody. When I use the "smbpasswd" command I expect it to 
write in the "smbpasswd"-file, but it only writes in the "passdb.tdb"-file.

The consequence is that "smb:/" in Dolphine does not work to contact the hard 
disk and I am not allowed to write to the hard disk when mounted.

My listing i fstab is:

//MSI-kt4v/MSI-kt4v_M_F /mnt/MSI-kt4v/Mine_Filer cifs 
umask=0,noauto,user,credentials=/etc/samba/auth.MSI-kt4v,uid=10001 0 0


Sincerely,

Ole Reier Ulland
Norway