note 11881 added to ref.session.php

I've having problems creating a user login with sessions... I've done two php pages 1. Login (login.php) 2. check if your logged on (bla.php) When I've logged in I get no response from bla.php, but then I upload the bla.php and it works... Although I can now close the window and enter bla.php again and still be logged in... short: 2 errors, 1-have to upload to see a change 2-it doesn't exit the session when I exit the window http://www.php.net/manual/en/ref.session.php