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

After much messing about with controlling my external gear from my 
XL7, I can only conclude that there are serious flaws in the OS that 
are getting in the way of my being able to use this gear.
My setup: XL7, chained to ER1, EA1, DX200 off midi port B, using 
three seperate midi channels. Using the event viewer, I can send prg 
chg to the external devices and it works but there are 
inconsistencies: 
1)the timing will drift between the EA1 and ER1. You could make a 
case of this being these devices, but this never happens when I use 
Sonar.
2)Changing bewteen patterns that send out prg chg messages, sometimes 
the prg chgs are not transmitted or I guess the external modules 
don't receive the changes, but that seems unlikely to me. Again, this 
is a random occurance, so I have a hard time tracking it down.
3)Looking at these midi files in Eloader, I can't even see where the 
prg chg messages are. I use track 16 for this, and they don't even 
show up. If I open the same file in Sonar, I can see track 16 with 
the prg chgs. If I then simply save the file, with no changes, and 
dump it back into the XL7, it will no longer send out the prg chgs. 
If I look at the newly saved file in Eloader, now I can see the prg 
chgs - but again, after loading it into the XL, it won't send out the 
midi info. What the heck is up with that?
4) Would it really be that hard to make the display in the event 
viewer change to match what I want to see? I mean: I would like to go 
to an event at a certain bar, beat and tick and see what is there 
currently. For instance, I want to look at an event at 001:001:002 on 
ch10. If I go to that event, the display just doesn't tell me what is 
already there.
Sorry if this is bitchy, but I really like the XL and it seems like 
these should be simple corrections, since this box is supposed 
to "effortlessly control" my external gear. I have contacted Emu by 
email but have gotten no reply, and its difficult for me to call 
during business hours.
thx
Dana