Editing XAML in Visual Studio

For no apparent reason VS 2010 decided to start crashing when editing XAML files. So I changed the default editor used to "Source Code (Text) Editor" which gives me syntax colouring and Intellisense but without the (crashing) Design view.
In the Solution Explorer Right-click on any XAML file and choose "Open With...".

To use the Design mode simply select the XAML file and click the "View Designer" icon in the Solution Explorer toolbar.