Forbidden
You don't have permission to access /phpbb/posting.php on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
This is coming from the server, and for the moment I have no idea what is going on. I'm checking the logs and trying to find it, and hopefully I can, but I don't know the cause. This is an error from the server, not the forum, so modifying your post probably won't fix the issue.
Of course none of this is happening to ME, so it makes it harder to track down. Hate this sort of Heisenberg error.