If I have nothing in $session_id, why do I get this message when I do a session_start() ? Warning: session_start(): The session id contains invalid characters, valid characters are only a-z, A-Z and 0-9 at C:\Inetpub\wwwroot\usr\local\global\php\online\InterfaceManager.php line 149. -- Diana Castillo Destinia.com C/Granvia 22 dcdo 4-dcha 28013 Madrid-Spain Tel : 00-34-913604039 Ext 216 Fax : 00-34-915228673 email: diana@xxxxxxxxxxxx Web : http://www.hotelkey.com http://www.destinia.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php