I've noticed every once in awhile when I leave my controller sitting there it will turn on one of the LED's by itself - i.e. I set it down at night and a couple days later I come back and one of the LED's is on. It doesn't happen very often but when it does it's rather mysterious. I think it has to do with the power management update that was put in the latest version. I will have another look at it next time we release a firmware.