Does anyone know the answer to this problem?

I'm developing a custom DNN module which performs a http get request to a remote server. When i perform this request, I get the following error

"The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF"

For your reference, here's my code;

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim str As String = "http://mlsr.realtylink.org/mlsr_xml/res_sale_result.cfm?AgentId=11944"
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(str)

Try
'Get the data as an HttpWebResponse object
Dim resp As HttpWebResponse = req.GetResponse()

Dim sr As New StreamReader(resp.GetResponseStream())
Dim results As String = sr.ReadToEnd()
sr.Close()

'Load the XML file in an XmlDocument
Dim doc As XmlDocument = New XmlDocument
doc.LoadXml(results)

TextBox1.Text = results

Catch exc As Exception 'Module failed to load
ProcessModuleLoadException(Me, exc)
End Try
End Sub

Many thanks in advance
Brad