This past Sunday, I prepared to fly my 4 star 40, which I have flown several times be fore with no problems. This aircraft is equipped with 127 df rx and using a skysport 6 Tx. Range checked and batts checked. The problem- turned on the Rx and all servos fluttered violently, turned on the Tx and every control suface went to nuetral and operated perfectly. This has not happend to my aircraft be fore but it has happened to others at our field. Needless to say, I did not fly this aircraft. All the other guys made sure all tx's were off and every thing. I am on channel 38, please HELP! Thanks TEEPEE