My understanding is that: -1 = default Windows soundcard 0 = first soundcard 1 = second soundcard ... etc. I know one can do exactly what you want to do, because I did it. That computer is still in the box since moving, however. 73 - Jim AD1C -- Jim Reisert AD1C/0, <jjreisert at alum.mit.edu>, http://www.ad1c.us