Ok, thanks. I tried that and now it simply shows a blank pop up. I don't show the exact code that you sent. Mine look like this
<?xml version="1.0" encoding="iso-8859-1"?>
<!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">
<head>
<title>
{$conf.company} - Live Support Solution (Powered By Help Center Live)</title>
<meta http-equiv="Content-Type" content="text/html;