The suggestion that rharv had for my ills with Windowa XP worked. Since my Ram is not suitable for audio recording I now am trying to record audio on my new PC with Vista 64 OS 6 GB Ram...what a different animal. I have similar problems with Vista OS that Im unable to figure out concerning monitoring (still a novice by the way). I have signal in via line input (using same preamp) line in at 100% on left channel only VU meter. When I press play I have song on VU (R) but no line in VU (L). When I press record I have line in VU (L) and no sound for song as if muted . Any thoughts? I hope I was clear enough to understand. Thanks, Jerry