im having trouble setting up my audio devices in nuendo. i use my m-audio mobile pre for recording and i use my soundcard for playback, but nuendo wont allow me to to ude both at the same time. if i set it up for the soundcard as the main input, it recognizes the mobile pre, but i can't record anything with it. if i set up the main input as the mobile pre, it only recognizes the mobile pre. it records but i can't get it to recognize or playback with my soundcard. help please.