Is there a way to do this or do we have to mod the install?

Basically, if someone isn't logged in I don't want them to be able to see the left or right column.

Best thing would be if we had an option to show them or not if the user was logged in. That way I could leave things like Forum Info, but things we would want to keep private like who's online, top posters, calendar, shout box, etc. we could. Because most of the info we want to keep private I would opt to have an all or nothing as my second choice.

Fred