Forum:Message Box Wierdness

I don't know why, but the message box (you know, the green one with the red text that warns of Other M spoilers?) refuses to ever disappear from the top of every page I look at. It has been doing this since I registered for the site over 1 year ago, and now it's really starting to bother me that it does not help me figure out if something is new as it claims it will do. Has this happened to anybody else and/or can it be fixed?