running problems

We are trying to install Squid 2.3 in a server with freeBSD as a O/S.
It starts up ok but when the browser asks the server for a URL ,
an "Access Denied" message appears on the screen.
 
Does anybody have an idea what to do?????
 
Thanks
Sotiris
The requested URL could not be retrieved

--------------------------------------------------------------------------------

While trying to retrieve the URL: http://www.squid-cache.org/

The following error was encountered:

    a.. Access Denied.
    Access control configuration prevents your request from being allowed at this time.
Received on Thu Feb 10 2000 - 08:42:31 MST