ERRO enviando DPEC no ambiente de homologação (v2.0)

[Verissimo]

Isso esta acontecendo com alguem, não estou conseguindo enviar a NF em DPEC, é retornado essa mensagem:

'<?xml version="1.0" encoding="utf-8"?>

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance'>http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

soap:Server

System.Web.Services.Protocols.SoapException: Server was unable to process request.

---> System.Xml.XmlException: Root element is missing.'#$D#$A' at

System.Xml.XmlTextReaderImpl.Throw(Exception e)'#$D#$A'

at System.Xml.XmlTextReaderImpl.ThrowWithoutLineInfo(String res)'#$D#$A'

at System.Xml.XmlTextReaderImpl.ParseDocumentContent()'#$D#$A' at System.Xml.XmlTextReaderImpl.Read()'#$D#$A'

at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)'#$D#$A'

at System.Xml.XmlDocument.Load(XmlReader reader)'#$D#$A'

at System.Xml.XmlDocument.LoadXml(String xml)'#$D#$A'

at Serpro.Sped.NFe.DPEC.SCERecepcaoRFB.Controle.ControladorDeWebService.receberDPEC(sceCabecMsg sceCabecMsg, String sceDadosMsg)'#$D#$A'

at SCERecepcaoRFB.sceRecepcaoDPEC(XmlDocument sceDadosMsg)'#$D#$A'

--- End of inner exception stack trace ---

'

Em anexo os arquivos de Envio/Retorno do DPEC

20110210221328-ret-dpec.xml

20110210221327-env-dpec.xml