Alright, we just bought a classroom set of iPod nanos 8gb to use in 6th grade. I put three of the students movies that they created onto one. Everything including syncing went fine, but about half way through the second video the nano just froze. It wouldn't allow me to shut it down, nothing. Left it on overnight, ran the battery down, turned it off this morning and everything seems to be working fine now. Was this just a fluke or should I contact apple and see if this is an indication of a real problem. Thanks for any help. BTW when it froze last night, the screen showed weird, distored colors.