Hi, I'm wondering if someone clever knows about this problem I'm having: I have a stock fedora core 1 samba install with openldap backend. Everything is working except that when a user who is in the domain admins or domain users group, the privileges are correct, but when they log on a second time without restarting the machine, all their privileges are removed and they are treated like a guest user. I have mapped the global groups using net group add command. I have set up nsswitch so that the system is getting its account information from the ldap database. The samba server is acting as a PDC. The clients are using XPPro and w2k. Please can someone, if they've come across this before, pass on some information to help me. Thanks Ned