I was hoping that the general forum would come up with some answers, but nothing so far, so...
I've upgrade to the latest versions and I still get (even a brand new project) an "Invalid Markup" on my designer window. If hover over either of the two controls in the xaml page, textblock or textbox, I get a hover message: "Textblock is not supported in a Windows Presentation Foundation (WPF) project."
Any idea when this might finally get fixed. It's hard to design a screen if I can't see what I'm doing.
Thanks