By the way, I would like to know if there is a way to restart the UR driver only, without restarting the Mac. A few months ago there was a problem with Adobe’s Creative Suite, and someone created an utility to reset part of that software, while waiting for a solution from Adobe (that arrived a few weeks later).
Also, I remember having used the Reset Audio Driver command in Logic with the MOTU 828mkII, when something like what I’m experiencing with the UR happened. It worked, and I could continue working without having to restart the Mac. I tried the same with the UR, and Logic 8 crashed.
Paolo