"It's all about signal routing through MixControl. You have to choose what inputs to the Pro24 you want to monitor, and where you want to send them."

Go to focusrite.com. At the top of home page click on support then answerbase on the dropdown. search for "Saffire Mix Control Tutorial part 1:creating mixes. At the bottom of the tutorial are links to two more tutorials.These cover all three sections of the mix control. Hint:once you set up your mixes you can name them and save the file in mix control. One click will open and setup your mix.Agreed that it's a learning curve,but worth it. The pro24DSP is rock solid for me with asio drivers.Focusrite is excellent at keeping drivers updated.
Bobby