No sound!

When ever I open Cubase I cant get sound from any other program ( Maschine, youtube). Whats going on and how do I fix it???

There should be an option “Release Driver when Application is in Background” option on the VST Audio System page allowing for the release of the driver to other programs while Cubase is still running.

Awesome thanks! that fixed that but now I’m not getting sound out of Cubase when I open up maschine??