Ezbus/audio Midi Setup Weirdness, Anybody else experience this? Options

[Levon River]

For some weird reason that is entirely beyond my ken, Apple's Audio MIDI Setup will *not* retain the EZBus as the "Selected Audio Device." It's startin' to get on me nerves.

In the "Default Input" dropdown it has EZbus. In the "Default Output" dropdown it has EZbus. But for "Selected Audio Device" it has "Built-in audio controller" showing in the dropdown. If I drop it down, EZBus is there to select. So I select it (which then opens a whole "Input Section" that wasn't there before I selected it). So I quit Audio MIDI Setup. And *every time* I go back into it, it has changed "Selected Audio Device" back to "Built-in audio controller."

I've tried changing it, then rebooting. No go. I can't find any preferences file that I can trash. So now I'm at the end of my rope.

Does anybody know what in tarnation is going on here and how to fumigate the gremlins?

[Lutefisk]

Just as a sidenote, although I've never had this problem with the ezbus, there are a number of people on sonikmatter who have had similar issues with all different hardware. There are some very intelligent threads over there, the gist of which are:
-Open AMS first, make your settings, and leave it open when you start your application.
-Selected Audio Device shouldn't affect the audio device used by your software: it's solely for the purpose of configuring hardware. Select stuff in the sound control-panel, or, with Logic, select it from within Logic (which may work with other software too).

-l