Working TV in the US doing what we call ATPB in TV production.
Basically playing back bumps, VOs and performance stems.
Using Live 8.2.7 and Fireface 800 and 10.6.8.

I connect 2 MacBook Pro systems together via OSX AudioMidi and
ethernet.  The 2 systems are "fired" from one Novation LaunchPad (up
to date driver).
The system has worked fine the last 2 gigs I did.  And for the first week of this show, last week.

Today I suddenly had an issue with stalling playback, for lack of a
better description.
The primary system, on the FF800 stuttered.
I checked to see that there was a Firmware update to 3.08.  I had been on 3.06.
I have updated, see what tmrw brings.

First question is, should I see the  coreMidi.framework as an open app
with the FF800?
I have taken the precaution of removing any other midi drivers from
~/Lib/Aud/Midi Drivers.
The back up is on a MotU Traveler; coreMidi.framework isn't "visible"
as an open app on that system.

Do you think it may be a driver issue that should be resolved with
3.08 installed?
I have repaired permissions post the update.