Need help setting up no login for nagios

I have Nagios 3.0.3 setup to use login name and password in order to see Nagios Web interface, but I want to remove that. I would like to it have just bring up the console without a login prompt. I tried to setup the default user name in the cgi.cfg using the line…
default_user_name=guest

But it still is prompting for username and password when I go to the web interface. I tried creating an account called guest, by doing…
htpasswd /usr/local/nagios/etc/htpasswd.users guest

I added the contact to the contacts.cfg…
define contact{
contact_name guest
use generic-contact
alias guest
}

But after all this I am still getting prompted to login. I can login with the guest account and get to console fine, but I would like to remove the login prompt. Any ideas what I am doing wrong or other changes I need to make for it to work?

Thanks,
Ruben

Edit cgi.cfg and modify the line
use_authentication=1
to
use_authentication=0