samba - Dec 2003 - W98 abnormal behaviour

Hi all,

i've got a strange behaviour with W98 workstations :
I've samba3 running as a PDC on an heterogeneous network.
it's used for authentication only and profiles are disabled so we use the
local
profile on workstation.

the configuration works fine for Win2k and XP. But on W98, it get an
"standard"
profile from an unknown place and manage to write it on the server...

here is my config, if any idea ...

[global]
        dos charset = 850
        unix charset = ISO8859-15
        workgroup = DOMAIN
        server string = Serveur
        min passwd length = 0
        username map = /etc/samba/smbusers
        log level = 3
        log file = /var/log/samba/%m.log
        max log size = 50
        announce version = 5.5
        name resolve order = wins host lmhosts bcast
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        add machine script = /usr/sbin/useradd -d /dev/null -g samba -s
/bin/false -M %m$
        logon path         logon home = \\%L\%U
        domain logons = Yes
        os level = 256
        preferred master = Yes
        domain master = Yes
        wins server = xxx.xxx.xxx.xxx
        create mask = 0770
        directory mask = 0770
        veto files = /lost+found/.*/

[homes]
        comment = Home Directories
        read only = No
        browseable = No

[Netlogon]
        comment = Network Logon Service
        path = /var/lib/samba/netlogon
        browseable = No
        share modes = No

[printers]
        comment = All Printers
        path = /var/spool/samba
        printable = Yes
        browseable = No

[ressources]
        comment = Ressources
        path = /ressources
        valid users = +samba
        force user = samba
        force group = samba
        read only = No