Currently Being ModeratedOct 16, 2012 8:38 PM (in response to JeanZhao)
Try a reset:
1. Hold the Sleep and Home button down (together) for about 10 seconds
2. Until you see the Apple logo (very important)
Currently Being ModeratedOct 28, 2012 5:16 AM (in response to JeanZhao)
I've got the same issue with my iPod Touch 5 I got a few weeks ago. It's happened twice already. I'm able to restart it, but it's a pain. I don't get why It keeps happening.