Server Error 500 Internal

[markbowman]

I use a COBALT RAQ4 running Linux, PHP 4.1.2-3, MySQL 3.23.54-1. I have been using DWMX with an Extension that uses the ob_start() function and includes the following

ob_start();
require_once("./../classes/commercecart_IC.php");
?>

If I run the script it gives me the INTERNAL 500 SERVER ERROR and the server closes the connection for some reason I cant work out. If I take the include out with // and disable that piece of script the page loads fine without any problem.

All pages that are developed locally are running fine but as soon as they are SSH'd into the directory on the RAQ they don't run unless the include above is not included.

I have revised permissions
Passwords of includes

Does anyone have any suggestion as to what I should look at next

Thanks

Mark