Elektron Musical Instruments

Hi, I noticed that the reverb overloads on one of my songs in the 
MD where it starts to make a screeching jet-like noise.  This 
does not happen while in pattern mode, only when these 
patterns play in song mode.  

I asked Elektron about this, and they asked that I send them the 
sysex info (so far, so good).  Unfortunately, I can't seem to get my 
computer to accept this sysex information from my MOTU 
Fastlane USB interface (I am using a G4 Mac).  The MD says that 
it is sending the messages, the Fastlane makes the obligatory 
flashes that let me know that it is receiving the info, but my 
computer doesn't seem to be making any kind of file for it.  Any 
mac users out there who can help?

Thanks in advance.