Silverlight 'Business Application' Template Missing

I'm looking for the template in VS 2010 for creating a Silverlight Business Application. However, I only have the following templates available to me:

• Silverlight Application
• Silverlight Class Library
• Silverlight Navigation Application
• Silverlight Test Unit Application

How do find/install the Business Applica开发者_如何学Gotion project template?

The Silverlight Business Application project template comes with WCF RIA Services. Make sure you have it installed. Otherwise, you can get it from here

Hope this helps :)

Update: @hughesdan solved the problem (see comments below), and noted something very important: make sure you've selected .NET 4.0 from the "targetted framework" dropdown