I was able to visit dnforum fine until I had to access it via ip right now (worked fine a few hours ago). When I try to send PM I get the message you are not logged in or don't have permission... and I can login as often as I want, it won't work.
When you access by IP it isn't holding your cookie and that is why you are having issues getting to your PM. All DNS has been corrected, now it's just a matter of all users resolving to the site.