I cannot replicate this, and nobody ever reported it so far but, I guess that using such a potentially dangerous tool like PTA, which plays with shaders, can possibly cause this.
Try to remove/disable PTA, and have P3D rebuild its shaders, by removing the following folder:
%LOCALAPPDATA%\Lockheed Martin\Prepar3D v4\Shaders
Restart the sim, and wait a couple of minutes for the black screen to go away, and see if it makes any difference.