Yesterday, we experienced a server crash, and subsequent forum corruption. During the recovery process, the "currently read posts" tracking mechanism was reset. This means that you will see all existing topics as "New Posts" regardless of whether you have read them or not. Frequent visitors might want to "MARK ALL MESSAGES AS READ" in the lower right of the main forum index. The forum should resume normal message read tracking from this point.
Thought something really strange was going on.
Please note that I have posted a Scriptorium update today and if you have marked all posts as read, you may not notice it.
Rich.
Yes, all the... uhm... discussion items show up as if they have unread messages, but I found that "Show unread posts since last visit" is correct.