Running Cubase LE on my PC. I record my guitar through a little two channel mixer and that goes to my computer via USB cable. Cubase is picking up everything, even shows the waves from the sound as I record. But when I go back to play it, no sound comes through my computer's speakers. I know this has something to do with the outputs, but all other forums are for Cubase 4 and 5. What should I do?!?!