anyone know what would cause crystals to go bad? i have 3 crystals 2 of them gotta be bad i guess, they been in the garage for about 3 days they worked when i put them up. now they don't work i swapped recievers esc's and all kinds of crap trying to figure out what was wrong, i never thought the crystals would go bad from sitting in the garage. i took a set out of another vehicle and all the recievers/ esc's i tryed worked fine. anyone got any idea?