There is a minor problem with multiple outputs in Logic 7. On some occasions you may hear no audio on Logic's aux channels when routing to those channels using the B-H outputs in Stylus RMX. If you experience this, press the Play button in Logic's transport window until you hear output on the aux channels. You should only need to do this once within your Logic session: after that, the aux channels should work properly. Apple is aware of the problem and it will be fixed in a future Logic update.