samba - Aug 2007 - Guest account access not working on Samba 3 with User modesecurity????

Hi,

I have a Samba server (samba-3.0.24-5.) that I have just transitioned
from Samba v2 to v3 and at the same time I have changed from share mode
security to user mode security.

I having problems allowing guest access to some of my shares on the
server. I have some shares (such as apps and cdrom etc) that I would
like to allow anyone to access - even if they do not have a login
account on the Samba server. This worked fine in share mode security but
does not seem to work in user mode security.

If a user (who does not have a login account on the Samba server) tries
to map a guest share, the user gets presented with a login dialog asking
for a password for the Guest account - how can I just allow access
without the user being asked for a password?

Here is my smb.conf including a guest only share for the cdrom.

Any help gratefully received

Regards

Gary


[global]

workgroup = DFGSRV
server string = dfgsrv Samba Server %v
printcap name = /etc/printcap
load printers = yes
printing = cups
cups options = raw
log file = /var/log/samba/%m.log
max log size = 200
security = user
password level = 8
username level = 8
socket options = SO_KEEPALIVE SO_BROADCAST TCP_NODELAY IPTOS_THROUGHPUT
dns proxy = no 
log level = 9
deadtime = 30
oplocks = false
level2 oplocks = false
encrypt passwords = no
idmap uid = 16777216-33554431
idmap gid = 16777216-33554431
template shell = /bin/false
winbind use default domain = no
map to guest = Bad User


[homes]
   comment = Home Directories
   browseable = yes
   writable = yes
   create mode = 0664
   directory mode = 0775

[cdrom]
        path = /media/cdrom
        writeable = no
        browseable = yes
        guest ok = yes
        comment = dfgsrv CDROM Drive
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