[Samba] Problems when saving AutoCAD files

[Santiago Pestarini]

2013/6/14 Santiago Pestarini <santiagonob at gmail.com>:
> Hi!
> I was searching for info about this issue and found almost nothing.
> So, let's go directly to the matters...
>
> - Problem:
> AutoCAD says "You do not have permission to save to this location."
> when trying to save the file in the samba share dir.
> (This problem only occur with AutoCAD.)
>
> - Scenary:
> Running AutoCAD in a WinXP/Win7 PC, opening a DWG AutoCAD file from
> samba share dir in Zentyal Linux server.
>
> I have Samba 4.0.5 running in my Zentyal 3.0.21, both recently updated.
>
> - smb.conf contents:
> [global]
>     workgroup = ESTUDIO
>     realm = ESTUDIO.LAN
>     netbios name = zentyal
>     server string = Zentyal File Server
>     server role = dc
>     server role check:inhibit = yes
>     server services = s3fs, rpc, wrepl, ldap, cldap, kdc, drepl,
> winbind, ntp_signd, kcc, dnsupdate
>     server signing = auto
>
>     interfaces = lo,eth0
>     bind interfaces only = yes
>
>     log level = 3
>     log file = /var/log/samba/samba.log
>
>     guest ok = yes
>     map to guest = bad user
>     guest account = nobody
>     auth methods = guest sam_ignoredomain
>
>
> [profiles]
>     path = /home/samba/profiles
>     browseable = no
>     read only = no
>
> [netlogon]
>     path = /opt/samba4/var/locks/sysvol/estudio.lan/scripts
>     browseable = no
>     read only = yes
>
> [sysvol]
>     path = /opt/samba4/var/locks/sysvol
>     read only = no
>
> [homes]
>     comment = Directorios de usuario
>     path = /home/%S
>     read only = no
>     browseable = no
>     create mask = 0611
>     directory mask = 0711
>     vfs objects = acl_xattr full_audit scannedonly recycle
>
> # Shares
> [expedientes]
>     comment = Expedientes
>     path = /home/samba/shares/expedientes
>     browseable = Yes
>     read only = No
>     force create mode = 0660
>     force directory mode = 0660
>     vfs objects = acl_xattr full_audit scannedonly recycle
>
> ----
>
> Also read this where Autodesk "wash their hands", blaming the server,
> the client, the network, etc:
> http://forums.autodesk.com/t5/Installation-Licensing/Unable-to-save-drawing/td-p/72075
>
> Please Help!

What about this?
Did I make some mistake in my question?
Please, can someone throw me anything?

I really need some help...