Warning: require_once(connection.php) [function.require-once]: failed to open stream: No such file or directory in C:\wamp\www\lasern\extra\update2.php on line 40

Fatal error: require_once() [function.require]: Failed opening required 'connection.php' (include_path='.;C:\php5\pear') in C:\wamp\www\lasern\extra\update2.php on line 40