I have a Silverlight application in which I would like to call a WCF service. When calling the service I receive the following response from the server:
Well, you could try using the "Silverlight-enabled WCF Service" template in VS2008, and comparing the differences? I expect that you need to use the basicHttpBinding and are using something more exotic.
For info, here is the web.config section for a default Silverlight/WCF service: