The forums have been giving me problems lately, all of J2O actually... but I only use the forums so I'll describe it about them:
After going into the forums and like reading a topic, if I click a link to go back to the list of topics I get this error:

Forbidden
You don't have permission to access /jcf/forumdisplay.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
--------------------------------------------------------------------------
Apache/1.3.33 Server at www.jazz2online.com Port 80

The only way I can is by pressing Back, and then I don't have the 'refreshed' page and won't see if my post has been added, or if the topic been bumped. And then after a few topics with that method, it gives me the error anyway.