Forgive me because I'm sure this has been asked already; but my new P3 will sometimes "take off" on it's own, after lift off about 4 feet up..... it will just run off to the right or left with no input other than the amount of throttle needed to get it off the ground- and yes, it crashes. Once I caught it, the other couple times - I tore up the props and it went belly up. Very frustrating. I have the latest firmware, installed before I ever flew it. I calibrate before each flight..... so what the heck is going on? Could it possibly be cause by metal objects nearby... like light poles or parked cars? Once I was taking off about 10 feet from a basketball net on a metal post and it took off and crashed. Then again, I've also flown in big open school parking lots with light posts and had no issues. After 2 sets of props, and some minor nicks and scratches...I'm starting to get apprehensive with this. Any suggestions???