Hi all, Just got my phantom today, first time flying one. Got through the initial setup and calibration, lights show ready to fly. However, one prop is weakly rotating while the others are spinning freely. I stupidly gunned the throttle anyway and it flew upside down into the grass. Two of the props have nicks in them now. 1. Any suggestions on how to fix the one prop not fully rotating? 2. Will the nicks in the props affecting flight performance? Are they still usable?? So disappointed! Thanks!