Yes, given this new (for me) search term, I found this verification that the problem is active sense. http://host.mtnsys.com:81/faq-fcb/Original%20FAQ/showfaqs.asp?FAQ=83#F83. I don't know if I can disable it on my usb interfaces, but there does seem to be some notion that the UnO firmware chip can solve it. There are other advantages to having that firmware, so I think I'll give it a try.

Thanks for all your help.

On Tue, Jan 29, 2013 at 11:44 PM, Devin Anderson <surfacepatterns@gmail.com> wrote:

Hi Bill,

On Tue, Jan 29, 2013 at 6:18 PM, Bill Allen <bill@k2bea.org> wrote:

> Yes, it happens just plugging the midi in of the FCB1010 to the midi out of
> any of the edirol usb devices - the FCB1010 signals its disapproval by
> lighting up a period next to the currently selected bank. If I try turning
> it off and on, it starts blinking and won't do anything else.

I agree with Clemens; this sounds like an active sense message issue.
You can probably confirm this by attaching a MIDI cable to the output
and input ports of the same device, and then using a MIDI monitor
application to monitor the MIDI input of the device.

Do any of your devices allow you to disable active sense messages?

--
Devin Anderson
surfacepatterns (at) gmail (dot) com

blog - http://surfacepatterns.blogspot.com/
midisnoop - http://midisnoop.googlecode.com/
psinsights - http://psinsights.googlecode.com/
synthclone - http://synthclone.googlecode.com/