I have the LG Chocolate 3 phone from Verizon Wireless. I just got this phone about a year ago. When I go to sleep at night, I plug it in to my charger. My phone rung this morning while I was still sleeping, I answered it, and then I closed the lid. It said that it was fully charged. So I unplugged the charger. Then, I had to add a few things up. So I went into the calculator under settings tools. Every time I go to the calculator, the phone powers down and then it goes back on. Everything else under settings tools work, it's just the calculator one that makes my phone goes off. I can answer make calls just fine. No idea what's goign on here. Anyone have any ideas?