I\'m working on a WPF application with Visual Studio 2010, using Telerik.
I have been dealing with a lot of crashes ev
If you think that it might be related to a component you are using, you may want to try and debug the Visual Studio Design mode and see in which scenario the ArgumentNullException is thrown or at least get the CallStack when the exception is thrown.
See this link : How to troubleshoot and debug Visual Studio design mode errors?
I personally do it with an instance of Blend and one instance of Visual Studio instead of two instances of Visual Studio.
I would also try from a complete new project without any external dependencies to see if it could be related to your Visual Studio Install