[Samba] Auth prompt if access share by machine name

[Michelle Dupuis]

I have a AD domain running fine, and I want to add my first linux server.
To keep things simple, I do NOT want to integrate it into my domain.  I just
want to create a share that anyone can read/write to.

I've created the setup below which works fine only if I access the linux
share box by ip address from windows; eg: \\1.2.3.4  This gives me full r/w
permission without any authentication prompts.
However, if I access the box using the name (eg: \\server) then I get an
authentication prompt I can't get past.

I've read the online docs but can' find a solution.  Can someone help?
thanks,
MD

--------------------------------------------------------
results of my testparm are below. I've replaced my real netbios domain name
with MYDOMAIN, and hidden the wins IP.  I've also disabled print sharing
which explains the printcap stuff.

Load smb config files from /etc/samba/smb.conf
Processing section "[movies]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
        workgroup = MYDOMAIN
        server string = Test server
        security = SHARE
        log file = /var/log/samba/%m.log
        max log size = 50
        load printers = No
        printcap name = /dev/null
        dns proxy = No
        wins server = 1.2.3.4
        printing = bsd
        print command = lpr -r -P'%p' %s
        lpq command = lpq -P'%p'
        lprm command = lprm -P'%p' %j

[movies]
        comment = Movies
        path = /storage/movies
        force user = testuser
        force group = testgroup
        read only = No
        guest ok = Yes