I've been running a11for a couple of months I guess. Today it all went wrong. All was well when I went to work. On coming home the unit just kept rebooting. It would boot to showing the track playing (but not actually, and duration not changing, buttons unresponsive) and after a variable amount of time reboot. This it continued to do until pulled from the sled. The unit was very hot at this point. This behavior contued even fter the unit had been reinserted when cold. Same thing when plugged into the mains. V2 final now installed and all is well.