Não Consigo autenticar com Samba 3.0.22

Acabei de instalar o Samba 3.0.22 e naum consigo autenticar
OBS! Interessante que que os usuarios que crio naum estao indo pro /etc/samba/smbpasswd
Add no Linux e depois com smbpasswd -a usuario e nada
Veja meu script do smb.conf
[global]
#Grupo, nome e comentario
workgroup = GROUP
netbios name = TUX_SERVER
server string = servidor

# Arquivo de log
log file = /var/log/samba/%m.log
max log size = 50
debug level = 2

# Senha criptografada
security = USER
encrypt passwords = yes
smb passwd file = /etc/samba/smbpasswd
username map = /etc/samba/smbusers
dd machine script = /usr/sbin/adduser -n -r -g machines -c "Samba machine " -d /dev/null -s /bin/false %u
passdb backend = smbpasswd

socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

# Interfaces
interfaces = eth0
bind interfaces only = yes
domain logons = Yes
os level = 100
preferred master = Yes
domain master = Yes

[netlogon]
comment = Logon de Serviços Network
path = /etc/samba/netlogon
guest ok = yes
write list = teste

[DADOS]
comment = Diretório para arquivar dados
path = /mnt/dados
public = no
valid users = @dados
write list = @dados
force group = @dados
read only = No
writable = Yes
#create mask = 0664
force create mode = 0740
#directory mask = 0775
force directory mode = 0740


o meu .bat tah assim

ECHO OFF
net time \\TUX_SERVER /set /yes
net use J: \\TUX_SERVER\DADOS


Alguem pode me ajudar?

Grato

Seque um smb.conf meu que tenho utilizado para meus servidores samba, tem funcionado no samba 3.

[global]
workgroup = SEU GRUPO DE TRABALHO
netbios name = NOME DO SERVIDOR QUE IRA APARECER NO AMBIENTE DE REDE
server string = Samba Server
time server = yes
; nt acl support = yes
security = user
encrypt passwords = yes
unix password sync = yes
passwd program = /usr/bin/passwd %u
passwd chat = *New*Unix*password* %n\n *ReType*New*UNIX*password* %n\n *passwd:*all*authentication*tokens*update*successfully*
; hosts allow = 192.168.1. 192.168.2. 127.
; load printers = yes
; printcap name = /etc/printcap
; printcap name = lpstat
; printing = cups
guest account = nobody
log file = /var/log/samba.%m
max log size = 50
; password server = <NT-Server-Name>
; realm = MY_REALM
passdb backend = tdbsam guest
; include = /usr/local/samba/lib/smb.conf.%m
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
; interfaces = 192.168.12.2/24 192.168.13.2/24
local master = yes
os level = 100
domain master = yes
preferred master = yes
domain logons = yes
; logon script = %U.bat
; logon drive = H:
; logon path = \\%L\ProfilesNT\%U
; logon home = \\%L\%U
preserve case = yes
short preserve case = yes
case sensitive = no
wins support = yes
; wins server = w.x.y.z
wins proxy = yes
dns proxy = no
; add user script = /usr/sbin/useradd %u
; add group script = /usr/sbin/groupadd %g
; add machine script = /usr/sbin/adduser -g maq -c "Conta do Computador no Dominio" -d /dev/null -s /bin/false %m
; delete user script = /usr/sbin/userdel %u
; delete user from group script = /usr/sbin/deluser %u %g
; delete group script = /usr/sbin/groupdel %g


#============================ Share Definitions ==============================
[homes]
comment = Home Directories
browseable = no
writable = yes

[netlogon]
comment = Network Logon Service
path = /home/netlogon
guest ok = yes
writable = no
share modes = no


#Diretorio Sistema

[Sistema]
Comment = Diretorio Sistema
path = /sistema
username = root
valid users = caixa
read list = caixa
write list = caixa
force user = root
force group = root



;[printers]
; comment = All Printers
; path = /var/spool/samba
; browseable = no
; guest ok = no
; writable = no
; printable = yes

Eu trabalho com tdbsam para os usuarios no samba.

Para adicionar um usuario no samba digite: pdbedit -a usuario ( mas primeiro vc adiciona no Linux useradd bla bla