Reply to midifighter no longer recognized after update to osx 10.7.3!!??

i got that problem with my midi fighter classic.

it worked flawless before, i updated to current firmware and all a while ago but since updating my macbook to osx 10.7.3 its no longer recognized. it doesn't even do the little startup animation with its lights. it just lights up the first led of the first bank(i have it in 4 banks mode).
it doesn't appear in ableton and mf utility can't find it either.
i haven't changed cables and have it plucked to a powered usb-sub on my desk...
anyone with the same problem and/or a solution???

cheers,

hgt