Ok this is the situation! My host got us a new server and moved us 2 days ago. Ever since those 2 days, I've been having this problem.

Here is the code I use:
[PHP]<?php

if(!$nr || $nr == "") {

include("../forums/news.php");

}
else {
include "content/$nr.php";
}

?>[/PHP]

Here is the problem....