To reset an iPod with a Click Wheel, including:
Fifth Generation iPod (also known as iPod with video)
iPod with color display (iPod photo)
iPod (Click Wheel)
iPod mini (Second Generation)
Toggle the Hold switch on and off (Slide it to Hold, then turn it off again).
Press and hold the Menu and Select buttons until the Apple logo appears, about 6 to 10 seconds. You may need to repeat this step.
To reset iPod, iPod (scroll wheel), iPod (touch wheel), and iPod (dock connector)
Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.)
Press and hold the Play/Pause and Menu buttons until the Apple/iPod logo appears, about 6 to 10 seconds. You may need to repeat this step.
This will reset (reboot) your iPod. Please note – if you are running version 1.2 of the firmware this will reset your iPod’s clock. Otherwise, it changes nothing else on your iPod.