Whenever I go to a topic in the Serious Discussion forums with multiple pages, I always start out a few days behind the actual last page. I solve it by going back a page or two and then the real last page comes up. I have no clue why this happens.
Also, the posts say they were posted much closer to now than they are. For instance, a post I made was said to have been posted a few seconds ago when it was over a page behind the real most recent post.