hice, pero sigue lo mismo mira te dejo el codigo
y me sale esto
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\AppServ\www\Dathporth_Finalisimo\index.php:9) in C:\AppServ\www\Dathporth_Finalisimo\login.php on line 2