I am running Magix Music Maker on my computer and I want to play my guitar along with the Music Maker tracks, but the Music Maker audio goes through the main computer sound card (and out of the computer speakers/headphone jack), even when my PodGX is plugged in. It does not come out of the PodGX line out (although my guitar does). I cannot therefore hear teh two audios together. This is a major limitation for me. How can I get the two (my guitar and the Music Maker audio) out of the same audio jack?