yeah, that is the way I approach the board on Mondays.....there is no way that I can read all of the "new" posts at one sitting.

Just open the forum to the main menu(don't click new posts or it will try to display all of the new posts, within limits).

Select each forum, one at a time and then hit "new posts" in each forum, that way it keeps all of the "unread posts" as "unread" in all of the remaining forums/topics.