I've recently notice that my volume rocker is overpressing when i try to lower the volume. Usually one press means the volume goes down one level, but lately it has been decreasing multiple levels with one press. My volume + button works fine to a one press : one increase, but my volume - over presses. It's not a steady over press either, sometimes it decreases only 2 sometimes 4 or even 5. It doesn't really affect anything other than being a nuisance. Is there anything i can do to fix this?