P.S. your forum has grown another annoying bug. When I tried to go from the support forum to this one, it incorrectly treated it as a request to log out instead. And when I tried to log back in I got a Firefox error page! It said something about a failing redirect. Then hitting "back" resulted in a lot of "Connecting to shareaza.sourceforge.com" without any page-loading, but walking the history all the way back to the main forum page and then retracing my steps worked, and it treated me as logged in again.
Obviously this should not happen. Selecting an item from the "forum jump" drop-down is not a click on the log out link and should never be misinterpreted as one; logging in should never produce an error message other than if the client's network connection is down or the password is wrong (never, in particular, a 400-series or 500-series error or any of Firefox's error pages for anything other than host unreachable), and the forum HTTP server should never ignore GET requests completely. All three happening within a few tens of seconds of one another should happen especially never.