Somehow that wasn't enough in my case.
Btw the explanation of 10202 "selected drivercould not be found" is that
the Logic though it had to use the "EMI 6|2" driver, and that one was
missing or damaged.
Somehow on reinstalling the corruption didn't go away (problem with
Archiving install is that prefrences stay in place, probably), so I
searched out everything with A62 (the unit has been renamed) in the
name, threw it away, then reinstalled the driver, and now we're happy.
email me: first name at last name dot net