samba - Sep 2008 - Clients disconnecting and msword problem.

I've got a lot of this in my /var/log/messages :

nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(351)

the problem is that sometimes accessing to server from windows client 
the mapped drive disappear to return in a second or two. I've got 
another strange problem. Opening a word file on the server and trying to 
save, MSword tell me that "the disk is full" and can't save. I
suppose
mys erver sometimes disconnect from client ( all clients! ).For this 
problem take in count that only msword do that stuff. Excel for example 
works like a breeze.
 
This is my testparm output :

[global]
        workgroup = MARELLA
        netbios name = URANIO
        server string = Server
        log level = 3
        log file = /var/log/samba/%m.log
        max log size = 50
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        os level = 60
        preferred master = Yes
        dns proxy = No
        wins support = Yes
        default service = dati
        inherit permissions = Yes
        inherit acls = Yes

[dati]
        comment = Dati su Server
        path = /home/samba/dati
        read only = No
        create mask = 0775
        directory mask = 0770
        guest ok = Yes


thanks if you can help me !

I've noted 3 stange shares exposed from my samba server. One has no 
name, the second is "*" and the third is "*.". These shares
appears some
minutes after the service restart.

Kak? ha scritto:
> I've got a lot of this in my /var/log/messages :
>
> nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(351)
>
> the problem is that sometimes accessing to server from windows client 
> the mapped drive disappear to return in a second or two. I've got 
> another strange problem. Opening a word file on the server and trying 
> to save, MSword tell me that "the disk is full" and can't
save. I
> suppose mys erver sometimes disconnect from client ( all clients! 
> ).For this problem take in count that only msword do that stuff. Excel 
> for example works like a breeze.
>
> This is my testparm output :
>
> [global]
>        workgroup = MARELLA
>        netbios name = URANIO
>        server string = Server
>        log level = 3
>        log file = /var/log/samba/%m.log
>        max log size = 50
>        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
>        os level = 60
>        preferred master = Yes
>        dns proxy = No
>        wins support = Yes
>        default service = dati
>        inherit permissions = Yes
>        inherit acls = Yes
>
> [dati]
>        comment = Dati su Server
>        path = /home/samba/dati
>        read only = No
>        create mask = 0775
>        directory mask = 0770
>        guest ok = Yes
>
>
> thanks if you can help me !