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

my xl7 screwed up the track assignement in song mode several times the 
last 2 hours.

i´m working on a song, that includes several patterns with tracks set 
to external. when i tried to restart the song all tracks where set to 
internal. i tried to press stop 3x to reload the initial setting, but 
nothing worked. the only way to get back to normal was to switch to 
pattern mode and execute the "revert to saved pattern" on the actual 
pattern.  the strange thing is, that the problem only happens every now 
and then.

does this sound familiar to anyone of you ?

alexander