[Samba] samba problem

[Wilson A. Galafassi Jr.]

Hello.

I'm using samba as my PDC. My version is samba-3.0.21b-2 with Fedora Core 5.

I having alot of problems specially with windows 98 stations. I have a
program hosted on samba that's uses DBF database and aparently the system
freeze and stop to working on stations. I see in logs this information when
the system freeze: closed connection to service sys

My smb.conf

[global]
   workgroup = DORIGON
   netbios name = SRV
   server string = srv
   smb ports = 139
   printcap name = /etc/printcap
   load printers = yes
  cups options = raw
guest account = nobody
  log file = /var/log/samba/%m.log
   max log size = 50
   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*updated*successfully*
   socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8192 SO_RCVBUF=8192
   interfaces =  eth1
local master = yes
   os level = 100
domain master = yes
   preferred master = yes
domain logons = yes
 logon script = dorigon.bat
   logon path = \\%L\Profiles\%U
   wins support = yes
dns proxy = no

[homes]
   comment = Pastas dos Usuarios
   public= no
   browseable = no
   writable = yes

[IPC$]
    path = /home/tmp
    guest ok = yes
    valid users =
    hosts allow =

[netlogon]
   comment = Compartilhamento de Scripts
   path = /home/netlogon
   guest ok = yes
   writable = yes
   share modes = no
   public= no
   browseable = no

[Profiles]
    path = /home/profiles
    browseable = no
    writeable = yes
    create mask = 0600
    read only = no
    directory mask = 0700

[sys]
    comment =
    path = /home/sys
    public = yes
    browseable = yes
    writable = yes
    locking = no
    printable = no
    valid users= @dorigon
    force create mode = 0777
    force directory mode = 0777