WampServer

I just installed WAMPE server with all the original defualt settings and it seems to work find. However, whenever I tray to instantiate any kind of a class... It get this error.

Fatal error: Class 'Site' not found in C:\wamp\www\009\index.php on line 21

in my index.php page I have..

require_once($_SERVER["DOCUMENT_ROOT"] . '/009/lib/site.php');



in my site.php I have

class CSite { /* lots of stuff here */ }

And i get this error message even when I down load a php package that I know works perfectly fine...Any help...?

include_once('/009/lib/site.php')