Mac, John. Thanks very much for the advice. I would not have considered any of these options and I'd dearly love not buying another interface. It's been a very long time since the horror of irc conflicts reared it' ugly head. I've been to device manager several times today and not seen any indication of conflicts in the first level. Would conflicts still show up in the first level where all the devices are listed. Things may have changed since I ran screaming from all this sort of stuff to a mac 16 years ago. My mac is old enough by a year or two to have been bypassed by new audiophile code. So here I am. But with this quality of help from you guys I think it could much less frustrating. You guys and this forum are the cat's meow. Hope the rest of your day is smooth.

Ron