For a while, the report icon for the alliance forum has appeared w/o a new post. I do not think I am not the only one to mention this, but I am curious about what is going on?
delete the last post that made it blue and than post a new reply on that same thread which will prompt a new notification for the new post on the same thread which replace the hold one so it wount be blue any longer.
There was a new post, however it was deleted before you had a chance to see it. The notification of a new post remains. You can get rid of the notification by clicking on "Functions" in the alliance forum and then clicking on "mark all forums as read".
also check the administrate forums (if u can) it can also be a joint forum that hasnt been accepted. you will get a notification anytime something is posted in those.