samba - May 2007 - net ads join doesn't work with samba > 3.0.22

Hi,

I have a problem joining my Linux servers to my AD with Samba > 3.0.22
I have tested with various distros :

Suse 10.2, smb 3.0.23d
Debian Etch, smb 3.0.24

but always get the same error message :

debian:~# net ads join -U administrateur -S s-dc-acms
administrateur's password:
[2007/05/30 12:27:15, 0] utils/net_ads.c:ads_startup(289)
  ads_connect: Aucun fichier ou r?(c)pertoire de ce type

(last line means "No such file or directory")

The problem is quite weird. With a Suse 10.1 (smb 3.0.22) I am able to
join the server to AD flawlessly.

kinit does work, I get a ticket when I do klist

debian:~# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrateur@HQ.ACMS

Valid starting     Expires            Service principal
05/30/07 12:19:43  05/30/07 18:59:43  krbtgt/HQ.ACMS@HQ.ACMS


Kerberos 4 ticket cache: /tmp/tkt0
klist: You have no tickets cached

Any ideas that might help ?

Thanks a lot