FINALLY!! Someone trying to do it right with 2 computers for sequencing and sequenced triggering and MyDMX!! And yes, you're right, that should work.
Obviously, the MIDI interface on the mac works, based on what you're saying you use it for.
Thanks for the details on what you're using on the PC side. I'm not going to research that right now, but that's a BIG bit of information.
Let's talk about the PC just a bit next time. Could you share the specs, but more importantly, the operating system, and if you're at the latest service pack AND if you're 32 or 64 bit. I think those aren't exactly issues though because you claim to have MyDMX running.
MIDIOX rocks. Great stuff!
This isn't the first time I've seen the problem you're describing. A nice MyDMX user called me on Friday and we could not get her MIDI to be recognized, even with MIDIOX, which was super frustrating. Her driver was the same as my driver, but our MIDI interfaces(both my M-Audio) are different, yet mine works. But still...
OK, to learn MIDI scenes in MyDMX, you need to be in USER tab, right mouse click the scene, it will let you "learn MIDI" and hang the window until it sees a MIDI command. You can leave MIDIOX running to check out what's going on the whole time. The think is, you're seeing it in MIDIOX at least while goofing around with MIDIOX. Things are looking positive.
First, check to see that your M-Audio device is showing up in the Sound Devices control panel. I bet it is showing up there.
Second, and I doubt this is your problem: Are you running the March 2009 version of MyDMX that can be downloaded from the ADJ web site?
My MIDI interface is an older M-Audio(MIDIMAN) MIDISPORT 2X2. Works fine, no problems. But, my main controller is a Korg nanokontrol USB/MIDI(No MIDI ports) compact controller surface. However, regardless of what I choose to use, MyDMX works just fine.
I also have the Korg nanokey, which is a compact keyboard controller. Like the nanokontrol, it has no MIDI ports and is strictly a USB MIDI device. Also, likewise is the korg nanopad, which is more of a percussion type controller. I CAN in fact trigger MIDI commands into MyDMX via the 3 Korg nano devices I have.
Third, we have to get ANY MIDI note on or CC being responded to via MyDMX. If you can't get past this, it might be time to look for a different MIDI interface, or perhaps a newer driver for your Pro-88. I'd start with a new driver for your keyboard first as that's cheap, quick and easy.(hmm, sounds like my sister.....)
Other than that, I do agree with your assessment in regards to LOGIC sending INTO the Pro-88. It could be a bad MIDI cable. You could have a configuration issue on the Pro-88 for all we know, but that DOES NOT explain why commands issued from the Pro-88 and seen by MIDIOX are NOT being recognized in MyDMX, especially when you're seeing via MIDIOX that the commands are in fact NOTE ON instructions, which is compatible with MyDMX for scene triggers.
Hold off on the MIDI interface for now. If anything, I bet you have a friend who could lend you an interface for testing, but again, hold off on any purchases yet.
A bit more on MyDMX: It does NOT show as a MIDI device in the OS. Also, MyDMX does NOT care what MIDI interface you use or device or channel, it just wants to see valid MIDI data coming IN via a MIDI IN port. Again, myDMX is confirming you have VALID inbound MIDI data, at least via locally produced data(the Pro-88 played directly). In your case, it's NOT a bad USB cable, you've rule that out.
Check your MyDMX, use latest drivers from M-Audio and ensure you're running the latest service packs, hotfixes, and other crap from Microsoft. REBOOT!!
Also, keep posting how you just did. You provided a lot more information than most folks do. Still need more information, but you're otherwise doing well.