Midi and the Flyer

[tomg]

I've been taking a few things to the studio. My play room at home
looked like it was bombed until yesterday. I started pulling the
sad remains together so I could do a few midi tracks and (????????)
the pc refused to drive anything. Grabbed the Mac hooked it up 
everything is fine...(more ??????)

I have used a Nexus + as a midi distrubution device for years, it's
at the studio now so this is the first time I have ever noticed my
MOTU "PC-Midi Flyer" will not drive my Roland stuff directly.

I was positive it was windows, removed and installed the drivers
, changed port settings, moved this and shuffed that. Even changed
the cables. Although the midi i/o leds had been blinking away on 
the flyer all the time, just like it was working correctly.

The bottom line is the flyer won't drive roland stuff directly. 
I still have a good selection of boxes here and the flyer works fine 
on the others I tried but jp-6 / d-5 / d-110 NOPE! Hook 'em up to 
the thru on anything else it's fine (??????).

I could just plug the Roland things into the thru on other stuff
until the Nexus comes home, or build a Midi-Out conditioner/
multiplier. But why should I have to? 

Anybody else using one of these?... Got any problems driving Roland
stuff directly? Got any suggestions? Is it a problem with Roland
stuff I don't know about?

-tg ( duh... )