When "php_value output_buffering" is set as "1" on the server, "unset($message_parser);" on line 1001 in posting.php causes abnormal behaviour: All redirection pages fail to display properly.

The forums do work - without the redirection pages - because the software seems to print out meta refreshes before the premature unset.

With "php_value output_buffering 0" phpBB3 works properly.