Why Am I Getting a 1090 Error, an XML Parser Error?

In my Flex 3 site, I'm getting a 1090 error, an xml parser error in IE only. It works in Safari and Firefox. Does anyone see a problem with this xml?

<adXMLReturn>
  <script type="text/javascript"/>
  <script type="text/javascript" src="http://www.dcscore.com/openx/www/delivery/ajs.php?zoneid=4&amp;cb=82622824804&amp;charset=UTF-8&amp;loc=http%3A//localhost/property-debug/property.html%3Fdebug%3Dtrue"/>
  <a href="http://www.dcscore.com/openx/www/delivery/ck.php?oaparams=2__bannerid=1__zoneid=4__cb=3ab5c92ee5__oadest=http%3A%2F%2Fwww.dcscore.com" target="_blank">
    <img src="http://www.dcscore.com/openx/www/delivery/ai.php?filename=mybanner.png&amp;contenttype=png" alt="" title="" border="0" height="60" width="468"/>
  </a>
  <div id="beacon_3ab5c92ee5" style="position: absolute; left: 0px; top: 0px; visibility: hidden;">
    <img src="http://www.dcscore.com/openx/www/delivery/lg.php?bannerid=1&amp开发者_开发技巧;campaignid=1&amp;zoneid=4&amp;loc=http%3A%2F%2Flocalhost%2Fproperty-debug%2Fproperty.html%3Fdebug%3Dtrue&amp;cb=3ab5c92ee5" alt="" style="width: 0px; height: 0px;" height="0" width="0"/>
  </div>
  <noscript>
    <a href="http://www.dcscore.com/openx/www/delivery/ck.php?n=a0ea89cb&amp;cb=INSERT_RANDOM_NUMBER_HERE" target="_blank">
      <img src="http://www.dcscore.com/openx/www/delivery/avw.php?zoneid=4&amp;cb=INSERT_RANDOM_NUMBER_HERE&amp;n=a0ea89cb" border="0" alt=""/>
    </a>
  </noscript>
</adXMLReturn>

Thank you.

-Laxmidi

Error #1090: XML parser failure: element is malformed.

Look at your XML tag, there is something wrong which is causing this problem. The problem is that your XML is not perfect and has mistakes.

Sorry everyone. Actually, this XML validates. I had a problem in another variable.

-Laxmidi