URGENT: Problem with smbpasswd (again)

[SI-Gaetan Boudreau]

Recently (after updating from 1.9.18p3 to p4) I couldn't use smbpasswd. 
 After adding the address 127.0.0.1 in the 'allow hosts' it was OK.

Now some users (on the same machine) can use it, others not.  Thet get 
this:

terre{vendetm}82: smbpasswd
Old SMB password:
New SMB password:
Retype new SMB password:
/opt/samba/bin/smbpasswd: machine 127.0.0.1 rejected the session setup. 
Error was : ERRSRV - ERRbadpw (Bad password - name/password pair in a 
Tree Connect or Session Setup are invalid.).

Any (fast) help would be appreciated.  Thank you.

-- 
====================================================
Gaetan Boudreau, ing/P.Eng.                       
Administrateur de reseau/Network Administrator
IRCM (Institut de recherches cliniques de Montreal/
      Clinical Research Institute of Montreal)

tel: 514-987-5563   fax: 514-987-5644
Internet E-Mail: Gaetan_Boudreau at IRCM.UMontreal.CA
Internet Web Site: http://www.ircm.umontreal.ca