Volume goes up uncontrollably
My 4 year old iPod clasic just started getting uncontrollably louder. I turned down the volume manually and it quickly rose to maximum level. Then I reset the volume level internally and it still ries rapidly, 2 or 3 seconds, to the maximum level within the levels just set up. I lower the volume manually and it rises to the maximum level on its own automaically. Onset of problem was sudden.Any ideas?
iPod classic, 1.1.2 Mac