Error convertring HTML to XHTML...
System.Exception: System.ArgumentNullException: Value cannot be null. Parameter name: stream at System.IO.StreamReader..ctor(Stream stream, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize) at System.IO.StreamReader..ctor(Stream stream) at FreeTextBoxControls.Support.Sgml.SgmlReader.LazyLoadDtd(Uri baseUri)//FreeTextBoxControls.Support.SgmlReader.Resources.Html.dtd\\ at FreeTextBoxControls.Support.Sgml.SgmlReader.LazyLoadDtd(Uri baseUri) at FreeTextBoxControls.Support.Sgml.SgmlReader.OpenInput() at FreeTextBoxControls.Support.Sgml.SgmlReader.Read() at System.Xml.XmlWriter.WriteNode(XmlReader reader, Boolean defattr) at FreeTextBoxControls.Support.Formatter.HtmlToXhtml(String input)