If you are on a mac you can check out a program called think. It blacks out the background and all other apps that are not being used but still gives you the ab

If you are on a mac you can check out a program called think. It blacks out the background and all other apps that are not being used but still gives you the ability to move toolbars and menus over to the second screen. I don't know if there is a similar program for the win/lin world.