Linking forums to website problem

[CampinCarl]

I'm trying to link the forums to my website so I can use all of the forum variables.

Here is how I'm linking my site to the forums:

PHP Code:

define('VB_AREA', 'Forum');
define('CWD', 'C:/path/to/site/httpdocs/forums');
require_once(CWD . '/global.php');
require_once(CWD . '/includes/init.php'); 


It works but I'm having a strange problem on my website now where the first include I use won't work.

1) I link to forums with above code.
2) I try to include another file onto my website.
3) The first include doesn't work, but all includes after the first will work.

Anyone have any idea why this happens?

--------------- Added [DATE]1237574524[/DATE] at [TIME]1237574524[/TIME] ---------------

I found the problem but I'm not sure why it's happening.

On the forums I have a custom header included via require_once. Now when including the forums global.php on my website I guess it is including that header? So, when trying to use require_once again with that file on my website it wasn't showing up.

But now my question is, why when including global.php does it include the forums header even though I don't see it?