This was a feature requested by Ret. Bugtech. He asked me the other day if on the main forum index instead of just showing that there's new posts in a particular forum, to actually show the thread with the new posts, similar to the old board. I managed to hack the board a little to show this now. There''s also a link on the forum index that says View posts since your last visit. This too will show you which threads have new replies.

A few days ago the date on the server got set to 2006 somehow. This really messed up a lot of things when the date was corrected, and I've been trying to straighten it out. Try logging out and then logging in again.