I am sorry but this is not something that can be "fixed". Allow me to explain. In order for us to be able to automate your Silverlight application we need to be able to inject our automation hooks into that application. This can only be done as the .XAP file is being downloaded by the browser. If your Silverlight application is already running it's too late for us to inject our hooks into it. This is why we state you must refresh the browser before recording and playback will work. Refreshing the browser will cause the browser to redownload the .XAP file which gives us the opportunity to inject our hooks.
the Telerik team