Hobbit523

Hi all, I have just purchased a POD Studio UX2, I have downloaded and installed all drivers and set the preferences in Logic to use it as the audio in and out device. I have connected the Analogue outs at the rear to inputs on my mixer yet I get no sound through the mixer or through the headphone socket when I play a track in Logic. When I plug a guitar in I can see the signal is getting to the computer but again I get no sound at all from the outputs. Am I doing something wrong? Help!