Hi
Ive been using my tascam US-122 to record audio for a few years now and I am finally getting around to using it for midi. My keyboard is a Yamaha S-80, which i have simply connected via midi cables- out to in and in to out (nothing for through). The little midi in/out lights on the tascam dont light up when i play. Maybe there is something I need to do on the S80? My program is cakewalk sonar, if that has anything to do with it, which i have assigned the Tascam midi ports and everything. I have a few other VST programs that I would really like to get this working with, so if anyone has any info, please let me know. I am very new to MIDI controlling, obviously. Thanks for the help...

First thing, in the basic you should have connected cables as follow :

tascam MIDI out to S80 MIDI in
S80 MIDI out to tascam MIDI in

Sorry if you already know it. But sometimes the main plug is really not plugged in the wall

I don't know the S80 so check the manual , but usually, when there's something to tune in a keyboard it's about enabling/desabling the "Local" parameter on or off, which means either it play its sounds when you use the keyboard or not. Nothing to do with MIDI out.

On the PC side, I don't want to tell stupidities so better left to someone in the know. I'd check I run the latest drivers for you windows version anyway.