Pro Tools 11 and PreSonus Audiobox USB

[omarrgifty]

Hi,

I'm using Pro Tools 11 and a presonus audiobox usb interface on a Macbook Pro. But Pro Tools doesn't seem to be picking it up. When I create a new track and try to set the input and output to the Audiobox, it doesn't show up in the list of available devices. It only shows my laptop's built-in microphone and speakers for the I/O options.

I launched the Audio MIDI setup application to see what I could do there, and went to the Pro Tools Aggregate I/O tab. The Audiobox is listed in the group of audio devices there, and at first the box next to it was unchecked. So I checked the box, but the Audiobox still isn't an option in the I/O setup.

Does anyone know what I can do to fix this so I can use the Audiobox as the input and output in Pro Tools?