not sure if u all know this but the driver that i got for the mpd16 was not an .exe file.
it was a .dll(?) that when i hooked up the mpd i had to point windows to the location of the driver.
then it installed fine. my only problem next was finding an ac adapter for it (which i found at radioshack) and configuring the notes for each pad so it would work with my roland mc-909 and with reason.
now it works like a charm and im psyched that i got it.