Hey ! I have been using the pod x3 live as my sound card and for recording with my home Windows desktop PC for a while now. I always muted the line in level of the guitar so i could monitor the processed sound in Reaper live without having the original signal blended in while tracking. I have recently switched over to a Macbook Pro and have my setup exactly the same, except on Mac in the system preferences there is no option to adjust or mute the input or output of the X3. So while tracking I have no possible way of hearing the monitored tone played back without the original signal coming through. Any thoughts ?