tmslugger wrote:Can someone please explain how the permissions work if a user belongs to more than one group?
If you retain membership in multiple groups you create the potential for permission conflicts. It's actually better practice when defining your group structure to minimize the # of group memberships that duplicate permissions. For example you say that in your board you created a "premium members" group that has permissions to view both the free and the premium forums and that the registered users group can view just the free forums. In this instance when you add the member to the premium group I would advise removing them from the registered users group and making the premium group their default. The only time I would ever advise a user to setup multiple group memberships is when the groups are setup with independent and non-overlapping permissions. As to your question regarding priority, the default group controls that in regard to certain functionality but not all, it gets a bit tricky with the Never permission being able to trump a Yes across groups. Hope that helps a bit.
tmslugger wrote:If the user is in the guests..
Members should not be in the guests groups, the guests group is really only designed for the anonymous user which is anybody browsing your board that has not logged in yet.