samba - Jul 2003 - can't change user passwords from xp client machines

All,

I am running samba v. 1.2 on a FreeBSD machine with XP clients. I cannot
make user password changes from  the XP machines using ctrl-alt-del > Change
Password. I followed some suggestions in the archives and on the net and
tried "guest account = smbnull." The result of this change was the
exact
same error in the smbd log, only instead of 65534 (nobody), the log read 101
(smbnull).

I would appreciate any suggestions on how to approach this problem. Below
are log and smb.conf.
>From log.smbd:
[2003/07/21 14:11:40, 0] lib/util_sec.c:assert_gid(114)
  Failed to set gid privileges to (0,1004) now set to (1004,1004)
uid=(0,1004)
[2003/07/21 14:11:40, 0] lib/util.c:smb_panic(1094)
  PANIC: failed to set gid

[2003/07/21 14:11:40, 0] lib/util_sec.c:assert_gid(114)
  Failed to set gid privileges to (0,1004) now set to (1004,1004)
uid=(0,1004)
[2003/07/21 14:11:40, 0] lib/util.c:smb_panic(1094)
  PANIC: failed to set gid

[2003/07/21 14:11:40, 0] lib/util_sec.c:assert_gid(114)
  Failed to set gid privileges to (0,65534) now set to (65534,65534)
uid=(0,65534)
[2003/07/21 14:11:40, 0] lib/util.c:smb_panic(1094)
  PANIC: failed to set gid

[2003/07/21 14:11:40, 0] lib/util_sec.c:assert_gid(114)
  Failed to set gid privileges to (0,65534) now set to (65534,65534)
uid=(0,65534)
[2003/07/21 14:11:40, 0] lib/util.c:smb_panic(1094)
  PANIC: failed to set gid

smb.conf:

; Basic Settings
        netbios name = freebsd
        workgroup = RHWC
        server string = ( Samba %v ) { %h } %a
        case sensitive = no
        time server = yes
        restrict anonymous = no
        client code page = 850
        announce as = NT Server
        announce version = 6.0
        max protocol = NT1
        fstype = NTFS
        domain admin group = @domain-min
        log level = 1
#	  guest account = smbnull

; IP and Speed settings
        max smbd processes = 0
        socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8192
SO_RCVBUF=8192

; WINS settings
        wins support = yes
        name resolve order = wins bcast host lmhosts
        max ttl = 360
        max wins ttl = 360
        min wins ttl = 180

; Forced things ...
        force directory mode = 0750
        force directory security mode = 0750
        force create mode = 0750
        force security mode = 0750

; FreeBSD stuff
        lock directory = /var/lock

; Domain and PDC
        domain logons = yes
        os level = 128
        preferred master = yes
        domain master = yes
        local master = yes

; Network security settings
        hosts deny = ALL
        bind interfaces only = yes
        interfaces = 192.168.1.81
        hosts allow = localhost 192.168.1.

; default security settings
        security = user
        security mask = 0750
        directory security mask = 0750
        encrypt passwords = yes
        min passwd length = 6


Thanks much.

Jeanne Schock
Systems Administrator
Regionalhelpwanted.com