XML, XPath in .net

Question

Im using vb.net, 2005, and Xpath queries (doc.selectnode("//LINE")) is not working on the following xml document... pls urgent help is required.

<?xml version="1.0"?>

<!--This is a host terminal response-->

<RESPONSE xmlns="x-schema:C:\FP\SWDIR\Content\emulation-schema.xml">

  <LINE INDEX="1">

    <![CDATA[  SOME DATA]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="2">

    <![CDATA[---------------------------------------------------------------]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="3">

    <![CDATA[ SOME DATA]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="4">

    <![CDATA[  SOME DATA]]><CARRIAGE_RETURN />

</LINE>

  <LINE INDEX="5">

    <![CDATA[---------------------------------------------------------------]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="6">

    <![CDATA[ SOME DATA]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="7">

    <![CDATA[---------------------------------------------------------------]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="8">

    <![CDATA[CLASSES]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="9">

    <![CDATA[ SOME DATA  ]]><CARRIAGE_RETURN />

  </LINE>

  <LINE INDEX="10">

    <SOM />

  </LINE>

</RESPONSE>