Ive flown my phantom about 20 times and on the last two times Ive encountered some strange behavior. The first time I had it hovering above my house at about 150 feet when all of a sudden it started to spin on its own, fairly fast, Being that I was directly under it I was able to counteract the spinning with the sticks and bring it down. The second time was similar but this time it was at a pretty decent distance away. I was impossible to bring it back to my position with regular GPS mode, fortunately I was able to switch to home lock, which at least allowed me to get it back to me so I could counteract the spinning. I was able to land it safely. I recalibrated the compass and it seemed to operate normally again. Anyone else have this happen?