I'm am sure this is silly..

[S.AM[SM]]

I actually have the same M-Audio MIDI USB Uno you have there.

It could be Vista? It worked fine on my old computer, which had XP,[which IS dead, unfortunately] with my microkorg and electribe transmitting and receiving MIDI as well as dumps.

I didn't know you could use WMP to do midi dumps? I use acid pro as my main sequencer, simply cause I started with it and am familiar with it, but it seems kind of shaky from time to time with midi.

Maybe I'll try to reinstall my midi driver again and give another crack at it tomorrow or next week [ive a show on Sat. and no real time]

Just out of curiosity, and maybe it will help me, but could you PM me a slightly more elaborate midi setup you have, Alex? I hate working with midi, and if we have similar setups, perhaps something that requires 10 minutes of tinkering around can be achieved as opposed to 2hrs of a hassle for naught.