Excerpt:
A major annoyance of mine after installing a new instance of Visual Studio is when I open a XAML document for the first time. By default, Visual Studio opens a XAML document in Preview mode (the design on the top and the code view on the bottom). As you start adding more and more elements to XAML, Visual Studio will render the XAML in the design view, even going as far as playing video back if you have a MediaElement defined.
