Tarkata

Hello everyone, I recently started streaming SC4 on TwitchTV using OBS. My first problem is that I can only stream on Windows Mode (Game Capture shows black screen). Is there a way to fix that? With that said I use Windows mode and Trilliam + Always on Top (This way I can see and chat directly in-game since I only use one monitor. The problem is every time I chat the game music restarts when I go back to the game. How can I fix it? Best Regards, Tarkata