Expression blend 4 Silverlight version Incompatibility

Question

I am getting the below error when I try create new sketch flow application

"Blend cannot continue because of compatible silverlight version could not be found"

I have the following installed

1. Microsoft Silverlight version 4.0.50524.0
2. Microsoft Silverlight 4 SDK
3. Microsoft Silverlight 4 Toolkit April 2010
4. Microsoft Silverlight 4 Tools for Visual Studio 2010
5. Microsoft Silverlight 3 SDK
6. Microsoft Silverlight 3 Tools for Visual Studio 2008 SP1 -ENU
7. Microsoft Silverlight 3 toolkit November 2009

Please suggest me a fix

Answer 1

Is Blend the current trial or the RC? Is Visual Studio 2010 GA or RC or Beta? That is the same version of Silverlight I have - what are the versions of Blend, the SDK, and the Toolkit?