I am in the process of setting up samba as a PDC for a mixed computer lab of WINXP boxes and WIN2k boxes. The winxp boxes aren't having a problem, but the winnt/2k ones are causing trouble. They will join the domain okay and log in fine. After reboot however, they will no longer allow a user to log in and will say unable to log in because the domain COMPUTERS is not available. Clues? global section of smb.conf =============[global] log file = /var/log/samba/log.%m smb passwd file = /etc/samba/smbpasswd load printers = yes name resolve order = wins lmhosts hosts bcast socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 null passwords = yes domain master = yes map to guest = bad user time server = yes encrypt passwords = yes printer admin = @adm logon home = \\%L\%u\.win_profile\WIN9X passwd program = /usr/bin/passwd wins support = yes dns proxy = no netbios name = fcs_server printing = cups server string = Samba Server %v logon script = logon.bat unix password sync = yes local master = yes logon path = \\%L\%u\.WINNT workgroup = FCS_COMPUTERS os level = 65 add user script = /usr/sbin/useradd -d /dev/null -g 100 -s /bin/false -M %u printcap name = cups security = user domain admin group = root rsteffes ctrevino max log size = 50 domain logons = yes