Elektron Musical Instruments

Try as I might, I could not find a definition or a solution for the "SYSEX ERROR CODE 1" 
message I get on my MachineDrum every time I try and load a .SYX file from the files 
section ...

I'm using SYSEX LIBRARIAN 1.0.4 under OSX 10.3.3, with a MOTU MTP AV MIDI Interface, 
which usually gives me no stress at all ...