I just recently bought 3 second hand nitro rc cars, my first ever. After reading up about the cars I decided it was time to fire the first one up. This one is like new, about 1 year old or so I was told. I put batteries in the car and batteries in the transmitter, switched both on and was surprised to find that nothing happened when I moved the levers. It looks like matched crystals. There is power getting to the receiver box but nothing moves. Have I missed anything?