Matt, can you leave your Box either ON or in Sleep/Standby for an entire day and then come back to it still up and running properly? I have to leave mine completely OFF otherwise it will hang after some hours, whether it's in standby or left on.

Last night it was left in Standby, this morning it was hung - no manner of remote button mashing would get it to respond. Screen remained black and Boxee logo light remained dimmed.

This afternoon I left it sitting on the home screen and this evening it was still outputting video, but was completely unresponsive to any remote input. One quick press on its built-in power button shut it down.