XML parsing in Safari error

[eluser]Matrices[/eluser]
I've been working on this site for a week or so, and I just realized that it throws an error in Safari. Something about not being able to parse the XML.

A PHP Error was encountered

Severity: Warning

Message: SimpleXMLElement::__construct() [simplexmlelement.--construct]: Entity: line 2209: parser error : ParsePI: PI xml-stylesheet never end ...

Filename: libraries/doohicky.php

Line Number: 30

Here's some code from doohicky.php :

Code:

function HTTPRequest($url)
    {
        $ch = curl_init();
          curl_setopt($ch,CURLOPT_URL,$url);
          curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
          //curl_setopt($ch,CURLOPT_MUTE,1);
          curl_setopt($ch,CURLOPT_USERAGENT,$_SERVER["HTTP_USER_AGENT"]);
          curl_setopt($ch, CURLOPT_TIMEOUT, 10); //times out after 10
          curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
          $data = curl_exec ($ch);
          curl_close ($ch);
          return $data;
    }
    
    function GetXML($character,$realm)
    {
    
        $xmlID = $this->HTTPRequest("doohicky.xml");
        $xml = new SimpleXMLElement($xmlID); // ** This is the error line **
        
        return $xml;
    }

Anyone know what I need to do in order to make this work in Safari?