Ron - hello..
Using SlickEDIT and editting the ultimatebb.php - i'm on line 689 and it's the "Get_ip" function...

ie:

function get_ip () {
$ipaddr = find_environmental("REMOTE_ADDR");
if ($ipaddr == "127.0.0.1" && find_environmental("HTTP_X_FORWARDED_FOR") != "")
[line 689]---> $ipaddr = find_environmental("HTTP_X_FORWARDED_FOR");

and as you know - there are many "$location = figurelocation();"