[Samba] WIN2k Log in problem to samba PDC

[rbsteffes at nc.rr.com]

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