Recently bought an HTC One and I have to say it is a great phone. However I experienced something rather odd today. I was watching a video on my phone today when all of a sudden it just stopped and said something like, "Sorry this video cannot be played". Then the screen turned black and looked like it had shut down. So I pressed the power button and the screen wasn't coming back on. The capacitive buttons on the other hand kept on blinking. After a few minutes I tried again and the the phone restarted but took quite a while. As of now, it's operating normally. Can anyone explain why this happened? And could it have damaged my phone? (It was an mkv file with hard codded subtitles, which couldn't be shown, and I was watching it with the built in video player of the HTC One). Thanks and sorry for the long post.