Need help with HttpWeb Request - Exception CR before LF


I need help using the httpweb request. I am getting an error when
trying to read the source code from the following web page:

The error I get in spanish is :
El servidor ha cometido una infracción de protocolo.
Section=ResponseHeader Detail=CR debe ir seguido de LF

which would translate to:
The server has commited a protocol infraction. Section= ResponseHeader
Detail=CR must be followed by LF

I am using 2.0. Does anyone know how to bypass this error?