Visbility for admin and authenticated users issues

I am having issues with visibility settings for authenticated and admin users. Basically I want the same visibility permissions for both authenticated users and the admin.

I have two frontpages, one for unauthenticated and one for authenticated users. The unauthenticated frontpage will be displayed by default but will switch to the authenticated frontpage once the user logs in (authenticates).

I have configured the user permissions correctly for the admin (displays frontpages correctly) and have applied those to authenticated users. When I am logged in as the admin the frontpages display correctly but when I log in as my test authenticated, non-admin account the frontpages do not display correctly - it only displays the unauthenticated frontpage even after log in.

I have created other roles and have assigned them to my test, non-admin account. I tested first by not giving frontpage permissions to these roles, permission has only been given to authenticated users, which the test account is, but it did not work.

I then tried giving frontpage permissions to those created roles to see if that would remedy the situation but it still does not work. Is this a bug or a configuration issue?

How can I get the frontpages to display the same way they do for the admin user as for authenticated users? Ideally I would not have to give permission to all the additional created roles an authenticated user could have.

Thanks