session troubles

Hi all, Im new to this mailing list so im not sure what to expect from 'y'all' but i'm hoping this will be the beginning of a long and beautiful friendship. My question: i have a series of PHP4 pages that if I start a session (session_start()) on the first page (adminLogin.php), all is fine and dandy...all the session_resources get passed to the next page (login2.php) and i can get acccess to those session resources. Te problem is, at the top of the page a warning message is displayed: Warning: Cannot send session cache limiter - headers already sent (output started at /home/e-smith/files/ibays/test/html/login2.php:1) in /home/e-smith/files/ibays/test/html/login2.php on line 1 What does this mean?? If i comment out the "session_start()" line, i dodnt get this message BUT i also dont get the session variuables i need. Hope Im making some sense, Hope someone can help. Thanks, Brad