I have set up an NT domain using samba 3.0.4 on Slackware 9.1 with Win XP clients. Security = user, samba is PDC and WINS server. I'm new to samba and working most things out as I go, but have one persistent problem: Some clients frequently refuse to log in to the domain, a situation that can only be remedied by, for example, logging in as local administrator on the XP machine, then logging back out and trying to log in to the domain again (usually successful the second time round). Is there some setting or configuration step I might have missed? Thanks Mick