samba - Jul 2004 - Problems with Samba x CUPS x win98 clients... (Help)

Hi all!

I'm using Samba 3.0.2a with CUPS serving about 50 win98 clients...
All my printers works fine though samba/cups, but sometimes nobody can 
print in a certain netword printer.

I open my CUPS (http://localhost:631) and see the printer stoped (not 
always) and always with one of the errors messsages above:

Printer state: Idle, accepting jobs
"Unable to connect to SAMBA host, will retry in 60 seconds..."

Printer state: Idle, accepting jobs
"Unable to connect to SAMBA host, will retry in 60 seconds... ERROR:  
Connection failed with error NT_STATUS_UNSUCCESFUL"

Printer state: Idle, accepting jobs
"Unable to connect to SAMBA host, will retry in 60 seconds... ERROR:  
Connection failed with error NT_STATUS_BAD_DEVICE_TYPE"

Printer state: Idle, accepting jobs
"Unable to connect to SAMBA host, will retry in 60 seconds... ERROR:  
ERRSVR - ERRerror (Non-especific error code) opening remote file 
smbpm_00000604 Without Name1"


And most of cases I need to delete the <printer>.tdb file in 
/var/cache/samba/printing to make the printer work again...

Someone can help with this? Why this happens and what can I do to avoid 
this ?

I post my smb.conf above too.

Thank you.

Fl?vio Henrique






# Samba config file created using SWAT
# from 127.0.0.1 (127.0.0.1)
# Date: 2004/06/25 08:22:20

# Global parameters
[global]
    dos charset = 850
    unix charset = ISO8859-1
    workgroup =  MYGROUP
    netbios name = SERVIDOR
    log level = 1
    log file = /var/log/samba/log.%m
    time server = Yes
    printcap name = cups
    logon script = logon.bat
    logon home = \\%N\%U\profile
    domain logons = Yes
    os level = 100
    preferred master = Yes
    domain master = Yes
    wins support = Yes
    ldap ssl = no
    create mask = 02777
    force create mode = 02770
    directory mask = 02750
    printing = cups

[C]
    path = /server/sistemas
    read only = No
    browseable = No

[printers]
    comment = Todas as impressoras
    path = /var/spool/samba
    guest ok = Yes
    printable = Yes
    use client driver = Yes
    browseable = No