I Bought WOR and two guitars second hand, they have both been working fine and syncing to the ps3. But went to use them earlier and one has stopped working. The PS button, strum bar and every other button don't seem to work. Changed the batteries three or four times, still nothing. It will not turn on or off, as soon as I put batteries in the 4 lights start to flash slowly, but none of the buttons on the guitar work and it won't sync. Something loose inside maybe?