Install OS into Kurzweil using iMac? Options

Kurzweil has come out with version 2 of the OS for its PC2 Performance Controller released about a year ago.  But I just can't seem to install it.  Kurzweil's instructions say to first upgrade the bootblock, then install the system.  The only sequencers they recommend for Mac users are MIDIGraphy 1.4.3 and Alesis Freeloader (very simple and user-friendly).  I purchased the cheapest USB interface I could find--Roland UM-1--and installed the accompanying software (USB MIDI Driver and OMS).  My iMac is OS 9.1, which definitely sees the interface. But opening the Kurzweil file with either sequencer and launching it produces nothing.  I'm wondering if the problem might be with the interface, the OMS program (should I use MIDIfree, included with the Roland software?) or the iMac.  Kurzweil offers no further guidance other than to warn against certain sequencers like Windows Mediaplayer.  I notice that the PC2 is too new to be listed in the Roland, OMS, or MIDIfree materials.

Any ideas appreciated.

Sam

[Synthetic]

First I must ask, have you setup the Kurzeweil to receive your midi data? Make sure you have the correct channels and ports selected. You may have to setup the keyboard to accept a syex dump as well. This means that you would play back the file as if it were just a midi file and your keyboard should show some sign that its getting the data. The file that you are opening could be the problem too. Hopefully it is all syex data that is handled properly by the sequencers. Other than that, I can only recommend you try contact Kurzweil's customer service via email or phone and explain your situation and they should offer some help.

Funny, I never thought of Window Media Player as a sequencer. There must be more to that MS hacked code than I thought ;-)

[cc]

I am working with Samuel at trying to load the Kurzweil PC2 Version 2 operating system.

Using the Roland UM-1 Mac-to-keyboard USB interface cable, we have established MIDI contact from both an iMac and a G4 using MidiGraphy--it plays songs just fine.

I don't know if MidiGraphy is transferring sysex commands, and don't know how to know. Can anyone help us with that?

When we try to 'play' (i.e. download) the operating system (which exists as a MIDI file), the keyboard recognizes it and the transfer begins just fine. Then it hangs--sometimes about the 5th or 6th 'measure,' and sometimes about the 17th (out of 27).

Any ideas?

Thank you!