I was researching the web on this, trying to find a solution. it fritzed out the day before but somehow corrected itself. but then today the light came on while in my pocket. my leg was getting warm and i noticed the light wouldnt turn off. it killed my battery, and even still the light is on. after intensive research, and me not wanting to spend money on fixing it at the Apple store, Smacking it was a common solution to this. So i smacked it. a few times in the back up in the corner where the light is. nothing happend, light still on. but then i smacked once in the front opposite of where the light is, and it worked the light turned off.