I'm using Windows XP.
I'm trying to install the ArcGIS Silverlight API. After running the API installation I fired up a new Silverlight project in Visual Studio 2010. I followed instructions in the Getting started section of the API's Concepts page. However, ESRI.ArcGIS.Client is missing when I attempt to add it as a reference to the project. I checked the gac and none of the dll's included in the api installation are registered.
Anybody run into this before?