I went to take off my grip on one of my 40ds today, turned the knob, it kept turning and all of a sudden... crack.... then the wheel keeps spinning. the grip was half way off., and luckily i have a very thin hack saw with a fine tooth blade to cut the screw off. but now i have a nearly new BGE2N grip thats fucking useless. Will canon warranty this you think? Its very new, i dont have teh receipt but i do have the warranty card. Anyone have this happen to them?