Haven't been playing tons of video so I don't know if it's had this issue since I first got my iPad or if something I might have done has started to cause the issue, but in the past week it's seized up three different times when playing video... Once was online (vimeo) but the other two times I was playing the Apple keynote where the iPad was introduced, downloaded through iTunes, on the native video player. 3G model, 64GB space; I've got about 40GB of video loaded on. Not jailbroken. I've watched more than a few videos on YouTube via the YouTube app, and haven't had any issues with freezing up; don't know if this indicates it's an issue with the video player app or if I've just been luckier when using YouTube. Picture freezes up, iPad becomes unresponsive. Can't force quit or power down; I have to force a restart. Has this happened to anyone else at all? .