[squid-users] Always ntlm .... Squid + AD

Hi,
I configure my squid with ntlm authentification ....
Samba + Kerberos + Winbind are ok ... The linux join the win2k3 domain ...
I can't connect my client through the proxy, I got a log :
"[2007/08/29 17:31:30, 0] utils/ntlm_auth.c:winbind_pw_check(429)
  Login for user []\[AlexandreMackow@mydomain.local]@[Myposte] failed
due to [winbind client not authorized to use winbindd_pam_auth_crap.
Ensure permissions on /var/run/samba/winbindd_privileged are set correctly.]
[2007/08/29 17:31:30, 0] utils/ntlm_auth.c:manage_squid_ntlmssp_request(603)
  NTLMSSP BH: NT_STATUS_ACCESS_DENIED
2007/08/29 17:31:30| authenticateNTLMHandleReply: Error validating user
via NTLM. Error returned 'BH NT_STATUS_ACCESS_DENIED'

right on /var/run/samba/winbindd_privileged are 755

Any idea?
Thanks a lot for your help

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