I'm seeing what you are, except for within posts. I still get the different colored headers.

There's one new thing I've noticed that I like. If I click on a forum with new posts in it, then click on a thread with new posts on it, and then hit the "back" button, the thread is marked as read, leaving the other unread threads still marked. That's pretty neat. Before, if you hit the back button, it understandably showed the previous state of the thread until you refreshed the page, at which point it would mark it as read.

Frankly I'm not sure how it does it the way it does now. The only thing I can think of is that it somehow quickly marks the thread as read after you click on it but before it takes you to it. I don't know...

And now I'm going to try the RSS feeds again, since they never worked for me before...