json restful service , IE trying to download response

Hi Guys,

I am trying to learn the basics of return data using a webservice in JSON format.

using this link

http://www.codeproject.com/Articles/105273/Create-RESTful-WCF-Service-API-Step-By-Step-Guide

Everytime I launch in my IE browser, IE tries to download it instead of open it in the browser.

I think I found a solution but I dont know how or where to actually set the reponse type to text.  Can someone please help out?

here is the link with my hopeful answer
http://stackoverflow.com/questions/1072595/json-xhr-response-opens-a-download-file-popup-window

thanks