ASP.NET

Microsoft Internet Explorer
Internet Explorer cannot download DataGrid.aspx from www.mysite.com.
Internet Explorer was not able to open Internet site.  The requested site is either unavailable or cannot be found. Please try again later.

<br />
Dim dataDirPathXML As String = Server.MapPath("..\DataGrids\XML\")<br />
ds.WriteXml(dataDirPathXML & Session.SessionID & ".xml", XmlWriteMode.WriteSchema) <br />
Response.Redirect("..\DataGrids\DataGrid.aspx")             <br />

<br />
  Dim temp As String = Server.MapPath("XML\") & Session.SessionID & ".xml"<br />
  If System.IO.File.Exists(temp) Then<br />
    Dim streamReader As New System.IO.StreamReader(temp)<br />
    Dim sBuilder As New StringBuilder(streamReader.ReadToEnd)<br />
    Dim stringWrite As New System.IO.StringWriter(sBuilder)<br />
    Dim htmlWrite As New HtmlTextWriter(stringWrite)<br />
    Response.Clear()<br />
    Response.AddHeader("content-disposition", "attachment;filename=" & Session.SessionID & ".xls")<br />
    Response.Charset = ""<br />
    Response.Cache.SetCacheability(HttpCacheability.NoCache)<br />
    Response.ContentType = "application/vnd.xls"<br />
    Placeholder1.RenderControl(htmlWrite)<br />
    Response.Write(stringWrite.ToString())<br />
    Response.End()<br />
   End If<br />

I've been to the Server.MapPath("..\DataGrids\XML\") location and the xml is not being created.