[Samba] Guest Account in v3.0.4

[M Maki]

I had a guest account that was working fine in 2.2.8. Now in 3.0.4 it does
not. Does it make sense with the following smb.conf that if the user does
not have a unix account on the server they should get guest account (read
only) access to the share? Now when the user tries to map the share they are
prompted for a password. Users with unix accounts have no problem.

[global]
        workgroup = PWR
        server string = Samba File Server for GIS
        security = DOMAIN
        password server = pwroakdc1
        guest account = sambaguest
        preferred master = No
        local master = No
        domain master = No
        dns proxy = No
        wins server = 192.168.78.6
        hosts allow = 192.168., 127.0.0.1

[gis]
        comment = GIS directory
        path = /home/gis
        admin users = mmaki
        read only = No
        inherit permissions = Yes
        guest ok = Yes