I am trying to use the excellent vBExternal program for my VB forum to put threads on my php website fronpage.
When I copy this code:
<?php
chdir('./forums');
require_once('./vBExternal.php');
?>
My site turns white.

My doctype is:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
Whey is that?