Downloaded Trial Can't record or play.

I downloaded the trial. when I insert a track, no matter what type, when I hit record, the tracking bar does not move and nothing is recorded. When I press play, The tracking bar does not move. I have tried putting notes in manually with the midi editor and it still will not play and the tracking bar does not move. I am running a mixer into a usb Behringer U-Control instead of a typical Audio Interface. Can anyone help me figure out how to begin using this program? I've never had this problem while using other DAWs THANKS!