the voice over on my ipod won't stop

my ipod won't stop doing voice over, it interupts my books i listen to, it skips over (fast forwards) on its own... i have restored the ipod many times. IT WON'T STOP. this is very expensive equipment and i'm very disappointed in the product. any suggestions? when i restore, i DON'T mark it to enable voice over. it still happens, incessantly. anyone have a suggestion?