MikeK, yes, I'm using a 2.0 USB port. I am playing an instrument, a Casio Keyboard that I am carrying the bass and rhythm on. I simply want to use BIAB for the drums only as my husband (the steel guitar player) doesn't want to be tied down to playing the song exactly the same everytime. The drums have to come in immediately after he counts it off! Trust me, it doesn't work if the drums come in a half a beat behind, makes for a very long night....

I guess I don't understand what a "soft synth" is. I would imagine you are referring to a sound module for your keyboard, right? My Casio doesn't have, as far as I know, a way to add a module. I have midi in/out but that's it. I'm not real up on all this so I'm sure I sound pretty stupid. I just know what I need, not how to make it work.