Ok, this has probably been posted before ( I looked and could not find an answer to my question ) but please bare with me.
This happens fairly randomly and I cannot duplicate it all the time.
Here's the situation: I visit my forum, and there are X number of new posts. I make a reply, and go back the the top level of that forum to view the other topics. (sometimes) Now ALL topics are marked as new! ACK!
Any clues as to why/how this happens and what I can do to fix it?
Probably your session timed out. The default IIS timeout is 20 minutes, if you visit a post, get coffee, and spend more than 20 mins getting your reply written, your session times out and you see this problem.