note 43594 added to faq

what is that problem? the message is : Warning: session_start(): Cannot send session cookie - headers already sent by (output started at d:\net\appserv\www\register_new.php:84) in d:\net\appserv\www\register_new.php on line 129 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at d:\net\appserv\www\register_new.php:84) in d:\net\appserv\www\register_new.php on line 129 ---- Manual Page -- http://www.php.net/manual/en/faq.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+43594 Delete -- http://master.php.net/manage/user-notes.php?action=delete+43594&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+43594&report=yes Search -- http://master.php.net/manage/user-notes.php