I just checked and New Posts looses unread messages also.

I noticed that when I take a too long to compose a reply to a post then unread status disappears eventhough I have not had a chance to read any other posts.

This is exactly what was going on for few months around Dec. The forums look like there is not much traffic until I start going through thread by thread checking for new posts. Lately, I don't have time to do this and wind up missing most posts.

The e-mail notification at the end of the day works fine, so at least I can keep track of those threads that I have already posted to.

It would be nice if the unread status started working again.