i just rebuilt my ofna ultra mbx comp from hitting a curb i replaced the steering servo with a hiteh mg then found the curciut board in the receiver was also cracked .. i tried 3 differant futaba receivers and none worked i tried replacing crystals still nothing i hooked up a traxxas receiver and everything worked but the traxxas one is too big for the box. has any one run into this before.. oh i did try to use a radio from a truck with same resolts [sm=confused.gif]