Highlighting New Posts

Since the mark all posts as read button has been working I have tended to go through the forum marking evertyhing as read when I have looked at the new posts. What would be useful, to me at least! Would be to have some sort in indication on the main Discussion page that there were new posts in the various sections rather than having to visit each section in turn to look for new posts. Not sure how easy this would be to put in place?

David