In order to keep people from making direct links to maps in our map database we check the http_referer header sent by your browser to verify you are following a link from our website whenever you download a map.

In most cases this method works fine - but some Norton Users have reported having trouble when trying to download maps from our site.

The following steps should solve the problem and allow you to download maps from the site without compromising your system security.

If you follow the above steps Norton will allow your PC to pass the http_referrer along to our site without compromising your system security in any way. This will not alter the behaviour of Norton Internet Security Firewall for any other sites that you use.