error [function.session-start]:cannot send session cache limiter-headers already sent

[ivan bravo]

Warning: session_start() [function.sessio n-start]: Cannot send session cache limiter - headers already sent (output started at C:\Inetpub\wwwr oot\pum\commons \Session.Common s.mod ule.php:7) in C:\Inetpub\wwwr oot\pum\commons \Session.Common s.mod ule.php on line 7

[Dormilich]

this happens when you have output before calling session_start().

make sure to call it before you have output.