I can say,I recive my Audya directly from truck who drive instrument from Germany in original package.OS must be loadet in Germany or directly in Ketron.Cant investigate that.After reload OS all USB ports start to work also comp can recognize Audya driver like I say befor.After reload OS Audya work with Sonar sequencer,with Windows media player and with WanBasco Midi player with no problem except also start aranger to play.
(You also say your computer doesn't see the drivers, but then say the Audya is playing MIDI files from your computer but in a strange way)
That was be befor I reload OS
Iam interest:can I reload all OS from begining start with first one and go with all update to 3.0a?