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

Does anyone else using the xx7 to control both an external synth 
(p2k) and using internal sounds on the same pattern have this 
problem?: Channel assignments are beforehand allegedly saved along 
with the Pattern. So how come when I switch to song mode to listen to 
what I've done, then go back into pattern mode, the channel 
reassignments have all defaulted back to "int". This is driving me 
crazy...I've saved the pattern when it's all set up OK but as soon as 
I play the song and go back again...even changing pattern and 
reloading it to refresh ther pattern data, the channel assignments 
are all reverted back to "int" instead of a smattering of "int" 
and "ext" as I had saved.

My midi merge is both off, rechannelize is on, the damn thing just 
refuses to remember it's ext assignments.

I have 3 px7's and all of them are doing this to me. At first I 
thought it was not saving my multisetup, but I have tried it with and 
without doing this (according to the manual channel assignments 
aren't stored in a multisetup anyway) and neither made any difference.

I've had to ditch using my TR rack and transfer all my p2k roms into 
my spare px7 and run them all in tandem using start/stop because of 
this....a real pain when there's not much room.

Any ideas?

PS is there a way of using eloader to upload / download sysex data - 
the midi log thing seems close but has no download.