Hey everyone, I've searched through the archives and can find mention of the problem, but haven't been able to track down an answer. The problem is as follows, certain accounts can't login to the samba PDC server (can't login to the domain, check your password error), while other accounts can. The mystery becomes completely baffling to me when I look at the more recent PC's in the network - all accounts work fine on the machines I have installed. However, on the older PC's (all windows XP SP2), I can't login with certain specific accounts - which do work on the newer machines. The only difference I can conceive of between the newer and older clients is that the old ones used to connect to the previous server, which was an old red hat box of which I don't know the details, but studying the user info on the older machines shows no discrepancies. The RequireSignOrSeal mod has ofcourse been done. I'm running a backports samba (3.0.14a-2woody1) from backports.org on a debian machine (2.6.6 kernel). All the clients are winxp sp2. Any help would be most appreciated. Evert-Jan Duindam L3E Dynamics C.V. St. Aagtenstraat 26 2312 CB Leiden The Netherlands tel: +31-(0)715141990 fax: +31-(0)715141981 gsm: +31-(0)625092990 Bank: 345640861 tnv L3E Dynamics te Leiden IBAN: NL47 RABO0345640861 SWIFT: RABONL2U Giro: 3998348 tnv L3E Dynamics te Leiden BTW nr: NL124877266B01 KVK nr: 28089759