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

I am trying to send program changes to my external gear and am having 
alot of trouble with it.  Each time I enter a event it ereases the 
other events in the list.  For example I place a prrogram change at 
001.01001 and then place a CC#21 at 001.01.002 and then use the 
scroll to look back to make shur that the program change is still 
there and it has been replaced with the CC#21.  what is going on here?

It is driving me nutts.

When i first installed the new OS this was not happening.  I have 
rebooted the XL twice hoping that it would just go away buy it has 
not.  

Also when i am sending programs to external gear nothing happens.  
The little midi light lights up but no change.  I have the recive 
program change turned on in the external gear and also have the track 
that i am using set to trigger both int and ext gear.  

Please tell me I am doing sompthing wrong.  I have lost all my 
pactience with waithing for this XL to be able to take care of this 
very simple task and it just is not working.

Mike