Error Sending ProfileRequest document

Hi,

I am receiving this response when I send ProfileRequest document to ASN using http post (cXML-base64 variable).

<cXML timestamp="2012-05-03T11:13:50-07:00" payloadID="1336068830403-1894309211902172009@216.109.111.74">

    <Response>

        <Status code="406" text="Not Acceptable">The document could not be parsed: Content is not allowed in prolog. (line 1, column 1) [ANCLS-742069]</Status>

    </Response>

</cXML>

Any idea what could be wrong with it?

Below is the xml posted.

<?xml version="1.0" encoding="utf-8"?><!--DOCTYPE cXML SYSTEM "http://xml.cXML.org/schemas/cXML/1.2.022/cXML.dtd"--><cXML payLoadID="2012-05-03T17:20:27@beeline.com" xml:lang="en-US" timestamp="2012-05-03T17:20:27" version="1.2.022"><Header><From><Credential domain="NetworkID"><Identity>AN01000696124-T</Identity></Credential></From><To><Credential domain="NetworkID"><Identity>---</Identity></Credential></To><Sender><Credential domain="NetworkID"><Identity>AN01000696124-T</Identity><SharedSecret>test</SharedSecret></Credential><UserAgent>Beeline - cXML V1.1</UserAgent></Sender></Header><Request deploymentMode="production"><ProfileRequest /></Request></cXML>