Updated URL:
This forum is for the WPF Designer ("Cider") in Visual Studio.
If you have questions about WPF or using the WPF runtime, then the WPF forum at
http://social.msdn.microsoft.com/forums/en-US/wpf/threads/ is probably a better place to ask your question.
Mark
Mark Wilson-Thomas - Program Team - WPF & SL Designer for Visual Studio - posts are provided 'as-is'