Last night, my home page for RPOL blew up. EVERY forum listed unread messages, and when I looked, every thread showed the 'unread' marker. In a couple cases, going into the very first thread and back fixed it, but for the most part everything was showing new material, even Heaven.

Tonight, it's doing it again.

I know this was addressed before, and supposedly fixed in the latest update, but I can't find that thread.

Did you relog after you saw the problem occur?  If your cookies for the site are wiped out for some reason it will cause what you're seeing.  A relog will fix it.

Hm. No, but if I see it happen again soon I'll keep that in mind.