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?

[BusError]

I reiterate my former comment, I have been using the EZ for months and never had a problem like that: even better, if I turn the EZ off and turn it back on, it is restored as the default device everytime.

What I do NOT do is use the AMS to set it ip;

in the system prefence, in "Alert" I have "Selected output device".
In "Output" I have "EZbus" selected
In "Input" theres only EZBus to select, so I select it.

In AMS, the "Selected Audio Device" does NOT change any setting related to the audio, that popup is there to select the device you want to EDIT the parameters from. It will ALWAYS reset to the first entry when you relaunch.

The only way I know to change the default input is to use the System Preferences. I don't think you can do that from AMS