Just figured I'd throw the other view out.
Stopped using the old boards the day I started playing with the new boards. Haven't looked back.
The new boards are just awesome, once you get them configured.
The options I like, are:
Sort: Number, Ascending
Category: Unread
Topic: Unread
Message: Unread
25 posts per page
View: Collapsed
Theme: Scalable Fonts
Was not happy until I set collapsed and scalable fonts.
Also, for reference I am using Mozilla 1.2.1
-pete