Larry - no problems to report from my end either (knock wood). I will tread carefully and at this point, have no intent to attempt any Favorites fun until I get some more details if there are any in the future. Thanks for contacting Yamaha. I would guess if they know of a problem causing board replacements, they would quickly develop new firmware to prevent the sequence of actions causing those problems... just thinkin'.... anyway, enjoy the SX900 (as I do) and thanks again for your action!