Using XML/XSL in webBrowser Control

I'm currently retrieving an xml block using a stylesheet from the database and storing it in a variable.  I can write this block to the webBrowser control, but it does not find the stylesheet that I want to utilize for formatting.  I've tried absolutely pathing the stylesheet in the xml block and numerous other path options and none seem to work.  When I save the xml to the drive and open it in the browser object all is fine.  I'm assuming it cannot resolve the position of the stylesheet.  Is there a special trick to this?  Any sort of direction would be helpful!!

Here is the xml block
       <?xml version=''1.0''?>
       <?xml-stylesheet TYPE=''text/xsl'' href=''/xsl/AGENT_OUTBOUND_CALLS.xsl''?>
       <AGENT_OUTBOUND_CALL>
           <CAMPAIGN_NAME></CAMPAIGN_NAME>
           <CAMPAIGN_ID></CAMPAIGN_ID>
           <GROUP_ID></GROUP_ID>
           <GROUP_NAME></GROUP_NAME>
           <CONTACT>My Name</CONTACT>
           <PHONE>345-3456</PHONE>
           <DATE>9/28/2004</DATE>
           <TIME>10:30</TIME>
           <COMMENTS>Need TO call about something</COMMENTS>
           <PRIORITY>1</PRIORITY>
       </AGENT_OUTBOUND_CALL>

Browser call (sXML is the above code retrieved from the DB, i'd prefer not to write it to a file and just dynamically populate the browser):
   frmConsole.wbOutbound.Navigate ("about:" + sXML)