Thanks for your quick reply.
The fact is I know it should work. I have done it on other projects and it worked. I took the Gamelibrary and it works there as well. :(
It is something I am doing wrong. I was just hopping for a tip or an advice on where I should start looking for a binding from a view to a property of the view model that returns another ViewModel that doesn't work.
There is probably someting like a default bindding manager by convention or something that his doing the binding itself and instantiating the screen.
Any idea? I know it is not easy but I tryed to prototype the error and it works on the prototype :(
I'm applying the same pattern of the GameLibrary sample (SearchView, ResultView,NoResultView...)
Thansk for any help