Thanks, that sounds promising.
I tried using it but am apparently missing something.
I have the main project specified as .NET 4 and thus entered '.NET 4' in the framework label box, and 2012.10 in the version box.
I created a project for the silverlight bits and specified that as FrameworkLabel Silverlight 5 and version 2012.10, but then then I see an error message saying something along the lines of a prior version cannot match the current project's version. (And
cannot click OK)
As they are (and should be) indeed the same version but different framework/platform, how to get around this?