I have an Ubuntu 12.04.2 LTS running DG and Squid I have no problems with surfing on Win 7 but XP always prompts for a user and pass and will never accept anything I give it. I get this toward the end of the negotiation in my cache.log file. negotiate_wrapper: received type 120 NTLM token 2013/06/28 20:15:01| negotiate_wrapper: Return 'NA = NT_STATUS_UNSUCCESSFUL I am out of ideas. Anyone? Thanks Eric Vanderveer