Problem after global.php is included

[Umpakati]

Hello,

I have a website that I am testing in a different subdirectory (dev/) than my forums (forums/). Getting global.php to include on the page is no problem...

PHP Code:

<?php 
chdir("/home/nykcity/public_html/forums/"); 
require_once('./global.php');   
chdir("/home/nykcity/public_html/dev/"); 
?>

However, if I go to my dev/index.php (where the ONLY reference to my vBulletin board is that one line up top)... I am taken to what looks like my FORUM'S index.php. When I remove that line, no problem, my site displays as normal. Any ideas?

Thanks,
-Phil