[squid-users] can't contact winbindd

[ABalzo]

I'm running Samba-3.0.5-2 with squid 2.5 STABLE5 on RedHat Linux9 machine.
Squid was installed with the following parameters:
                                                                                       
                          
                                                                                       
                          
                                                                                       
                          
                                                                                       
                          
                                                                                       
                          
  ./squid -v                                                                           
                          
  Squid Cache: Version 2.5.STABLE5                                                     
                          
  configure options:  --prefix=/etc/squid --enable-auth=ntlm,basic 
'--enable-ntlm-auth-helpers=SMB, winbind'     
  --enable-external-acl-helpers=winbind_group --enable-basic-auth-helpers=winbind      
                          
  --enable-ntlm-auth-helpers=winbind                                                   
                          
                                                                                       
                          
                                                                                       
                          
                                                                                       
                          

The auth_parameter is set to ntlm and the program is wb_ntlmauth

All the winbind checks (e.g wbinfo) works fine, i can join the domain and i
can see, from linux to NT, all the NT servers but when i use the browser
(from a NT machine configured with the new linux squid proxy) i can't see
any page. In the cache.log file i receive the message
(wb_ntlmauth)[25754] (wb_ntlm_auth.c:416):Can't contactwinbindd. Dying

and the file smbd.log (/var/log/samba)
process_loop: Invalid request size from pid 27565  this usually means that
you are running  old wbinfo, pam_winbind or libnss_win bind cleints.

In your opinio what i have to do in order to setup in the correct way the
proxy

Thank u very much
      Andrea BALZO