I have had a 2g ipod touch for about 6 months now, and this afternoon its volume when playing musing through headphones is always too loud. Adjusting the volume has no effect except when set to zero. In other words, moving the slider all the way to the left makes it mute correctly, but sliding anywhere to the right is full volume. In addition the Settings->Music->Volume Control has no effect even when it is all the way at the minimum. I've tried a full restart of the ipod a couple of times, but no improvement. No new music or apps were installed; it simply went from having volume control to being 100% full volume all the time. I'm wondering if the volume limiting circuit in it is fried.