Hi Chris! Saw a few new posts (including this one) when it came back up and I clicked on "Show unread posts since last visit".
Read those, then clicked on "Click here to try all unread topics" which often has brought up things I missed otherwise -- and it is showing "new" posts in many many pages of topics, most of which I've already read (I didn't look at all the pages).
The only other thing that seems different to me is that when I clicked on "show unread posts" it brought up the first post in the thread, and I had to scroll down to find the newest post. Seems like it used to bring me right to the part of the topic where the "new post" was so I didn't have to scroll down to it .... Hope that makes sense.
Thanks for all your work on this!