i've upgraded my MD to the newest firmware - and lo and behold - disaster - nothing works anymore.
so with all these mac-related troubles, i figured, i might as well just a small PC, only for running MCT.
this work work fine, no?
MD usb output to PC
MD midi output to midi sequencer (mac leopard, running superior drummer 2)
the PC will simply act as the "brain" for the MD - nothing else.