Is there a problem with the beta 3 rad window. When ever i click on the rad window boarder as if to move the window the application crashes and takes down the silverlight app with a code 4004

Hello stephen yeadon,

We don't have beta versions of RadWindow, what is the exactly assembly version you use? You can try to download our 2009 Q2 SP1 release, available from several days now. The service pack release includes some changes and new features which we will introduce in our online help articles in a couple of days. If you have any other questions, please get back to us.

Kind regards,
Hristo Borisov
the Telerik team