>>Why do you guys always jump to blame MS for buggy software. I have been using WPF/Silverlight since the beginning and have never had a problem

He's running an MS app on a MS O/S.
To someone who's been using Fox for eons, VS is comparatively opaque (hard to understand intuitively) and unpredictable (it does things you don't expect it to do).
To be fair, VFP was worse in its formative years and VS 2008 is much friendlier than earlier versions.