Login Loop on MAC OS X 10.8.2

I have been encountering a problem trying to log onto hubbardresearch.com to download our free media on my Mac Mini.

I am running the newest Mountain Lion OS 10.8.2. When I log on to be able to download the various media files I am directed to the home page. When I go back to the download page, it asks me to log in again.

We are using the ‘Role Scoper’ to grant users access to our downloadable pages.

This does not happen on Windows XP, 7, or 8 with any other web browser. This only appears to be happening with Mountain Lion 10.8.2.

We have several visitors experiencing the same problem and would like to know if there is any resolution.