Ian,
Just to clarify, are you talking about at the top most level of the forum (the root)
or one level down e.g. once inside the General section?
Bill,
The little orange square sounds fine, see attached - does your screen look like this?
Dark/Hightlighted blue icons obviously represent 'unread' posts. If all your icons are
showing as if everything is unread then you can always click on the link at the bottom
right of the screen to clear that "Mark all posts as read". Next time you return to the
forum, new posts only should show with the bright blue icons, all other forums/posts
will have a faint blue icon next to them.