Hello, When I start a new Visual C# Silverlight project in the official release version (not the beta or the release candidate--the official release version) of Visual Studio 2010, I get only Silverlight 3 as an option in the Silverlight Version dropdown at the New Silverlight Application dialog box. I have installed SL 4, the SL4 tools for VS 2010, to no avail. I am running Windows XP SP3. Any ideas??? Thank you, Jon