In specific, it appears to be directly related to the visual switching.

Playing Blue man group Mp3's, switching between the visuals using the rio remote, and boom, the interface does NOT respond to either the remote, nor the front panel.

The clock stops incrementing (system clock), but the visual is still going, emplode can not talk to the player, power off and back on to fix.

The player DOES seem to come up a bit quicker now....

Haven't been able to reproduce it after the first three times. I did a sync from emplode after each lockup to verify the DB was ok.