Visual Studio 2008 Xaml Editor not working / disappeared

Question

When I start up VS 2008 to work on a WPF / Silverlight App and open a XAML or XML file the XAML / XML editor is no longer working. The designer does not show up and intelli

Answer 1

The designer for XAML is awful. Do yourself a favour and set your XAML files to open in the code viewer instead; they'll load quicker and you won't have to deal with the designer's flakiness.

However, to fix the intellisense, just re-register TextMgrP.dll using regsvr32 as indicated here.