Emu XL-7 & MP-7 User's Group

I've been trying to upload the "commandprep10.dli" file via 
E-Loader for over 2-hours now without success.  E-Loader 
works *fantastic* for transfering patterns back and forth to the 
Mac, but the OS just won't upload.  I always get "MIDI Timeout 
Error" on the XL7.  Every time I attempt the upload, I get part of 
the file transfered and then it just hangs.  Sometimes I get 0 
bytes transferred.  I've been able to get a little over 70KB 
transfered on my best attempt.

Can anybody share success stories, tips, or tricks for uploading 
the new OS?

Here's my system:
       - Mac PowerBook G3/333
       - MidiMan MIDISport2x2 USB interface
       - XL7

I've tried swapping out MIDI cables, many reboots of XL7 & Mac, 
increasing the Memory for E-Loader to 100MB (ridiculously high), 
and holding my breath during uploads.  No luck.

Any advice is appreciated.  Thanks!

- A.