Hi, I had a fully-functioning MB-6582, but now all the encoders have stopped working. They look physically OK, and I've resoldered all the pads on both ends of the connecting cables between the mainboard and the CS, but they're still not working. The LCD, all LEDs and the tact switches all seem to work fine. What else could have gone wrong? I've tried reseating all the ICs in that section of the mainboard too. The ribbon cables I'me using to connect the two boards are quite stiff, and a bit t