[Samba] 3.0.10 to 3.0.20 transition problems ...

[rodrigo at dgf.uchile.cl]

Dear all..
 I moved my samba server to a new linux box (faster, bigger, etc..),
and I moved from Mandrake 10.1 to 10.3 (mdk 2006).. I just copy my old
configuration file to the new linux box. The new linux's distribution
comes with samba 3.0.20... ( In my WinXP's clients I didn't change
anything). Of course, it doesn't work.. My clients can't connect to the
new samba server... I have been googling the problem, reading
documentation, FAQ's, etc, etc, etc... and nothing... I'm new in samba
world, And my first configuration works fine, but this one, have been
painful

Does exist big differences from 3.0.11 to 3.0.20 ??
Does exist a configuration problem in my old smb.conf  file ?

I'm getting a little bit crazy..
Rodrigo
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old smb.conf
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[global]
        workgroup = LGI_GROUP
        netbios name = lgi
        mangling method = hash2
        server string = Servidor Samba LGI
        passdb backend = smbpasswd:/etc/samba/smbpasswd
        username map = /etc/samba/smbusers
        log level = 1
        log file = /var/log/samba/log.%m
        max log size = 4096
        security = user
        encrypt passwords = yes
        socket options = TCP_NODELAY SO_SNDBUF=8192 SO_RCVBUF=8192
        domain logons = yes
        preferred master = yes
        domain master = yes
        dns proxy = no
        hosts allow = 172.17.71.0/24 127.
        interfaces = eth0 lo
        load printers = yes
        printcap name = cups

[homes]
        comment = Directorio Raiz
        valid users = %S
        invalid users = root, daemon
        read only = no
        browseable = no
        writable = yes
        follow symlinks = No
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