so, here's some additional info.
tried microbrute on another laptop, windows 7 pro , with sugar bytes thesys midi sequencer installed, it "saw" microbrute as input and output, the midi in worked good, with midi out, once more : nothing.
i also saw that when i open any midi controller program (such as reaktor) the microbrute connection software can not see the microbrute, and vice versa when i have the microbrute connexion software open, most hots have problems with midi.
does anybody else face problems with midi connection over usb with this synth?
strange really strange. any suggestions?
(i'm still thinking it's a firmware bug).