Update
I just noticed a pattern and ran a test:
I went through the forums (because, once again they were marked as Unread when I had actually read them) and one by one marked each forum as Read using the tool "Mark this Forum Read". I closed my browser, opened a new one, and, yep, they are all marked as unread again.
Is that tool a session based marking or what? It is kind of irritating to have to wade through posts I have already read because I cant tell read from unread.
It is not user error, I am a Microsoft and Macromedia certified developer so I can assure you it isnt just my misunderstanding.