RE: Servo Question
Can you test it with a servo driver/tester? If you have, and the same tester worked fine with other servos, and you checked/rechecked the connections without success, you must have a bad servo. If you are using a receiver, switch it to another channel which you KNOW is working - if it doesn't work there, bad servo. If it DOES work in another channel, there could be a problem with the receiver.
Hope this helps...Chris