Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I don't know, but I sure hope so. Ever since iOS 5 came to the ATV, both my ATV2 and ATV3 have strange quirky things going on, including the on/off thing, having to reset them far more often and other little things.

The ATV2 was far more stable on iOS 4.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.