Hi Michell,

As Noel has said, you need third-party ASIO drivers. You could try The Fender one, or
an alternative would be ASIO4ALL which you can download here -

http://www.asio4all.org/

Once you've installed the drivers on your computer, the next time you boot Realband,
it will ask if you want to use ASIO. After you select ASIO, you will see the
available audio ports. Select the relevant ones and that's it.

You will also need to open AUDIO PREFERENCES again and check the box at the top right to
allow input monitoring, so that you can hear what you're playing.

Hope this helps.

ROG.