Forum Pagination and New Threads/Replies
I might be completely blind, but I can't find a link to go to the second page of a specific forum. If a particular thread gets knocked past the most recent ones, they're lost forever in the abyss of the internets, seemingly pushed off of the verge, abandoned and deserted in the void of space and time.
Also, there isn't a really good way to tell if there is a thread that is new or has replies that you haven't seen yet. That seems pretty critical for easy forum browsing and for quickly checking up on what you've missed since your last visit.