hi. i was putting together a plane i got today and i was installing the radio. i turned it on and tested it, then turned it off and put it aside. without dropping it or hitting it on anything, i picked it up again to test it again. the throttle stick acted almost like the other sticks-it would get tense the higher i pushed it. so i took the radio apart and started fiddling with it. using the other stick as a reference, i tried to make everything look the same on the throttle stick. i finally figured out the problem and fixed it, but its too hard to explain. did anyone else have this problem?