Silverlight OOB中的白屏问题

I've a Silverlight Application built with Silverlight 4 to and which works in Out of Browser mode. When I launch the application, there is a white screen appearing for some time. I did some googling, which referred me to a blog post by Mike Wolf, but then the link was removed. So I thought of getting the window handle and hide the window and showing something else till the loading is complete. But I understand we can't do pinvoke from Silverlight 4. But is, there some way I could avoid the white screen?I've a Silverlight Application built with Silve