Silverlight OOB Fullscreen Elevated Trust issue

I want to run silverlight OOB fullscreen using elevated trust.

I noticed that as long as I check elevated trust, there will be a black secondary window when fullscreen is launched. This black window is only noticeable if I alt+tab out.

Once unchecked the elevated trust, the black window is gone.

Application will be run in full screen, so 1 of the way I thought of to solve this problem is to change the resolution, but I do not know this part.

Anyone can help me to remove the black window, or change the computer's resolution progr开发者_如何学编程ammatically using COM object?

I think this is something to do with Silverlight running the OOB app under the SLLauncher.exe process. AFAIK there is no way around it - I think shutting the window would perhaps kill the process and the app?