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

My friend has a weird thing going on when he hits the play button.  No matter what 
the pattern is, a random percussion note will sound just before the sequence starts. 
(happens as the play button is pushed)  He did run the diagnostics and everything 
checks out.  He updated the OS two months ago to 2.0

Any ideas?

Thanks!