Alan, it is possible that it is your click wheel, or the microswitch itself. You can use a multimeter to check the switches. The images should show you how to check. If the switch is not working, it will be difficult to obtain a replacement. You could A. try and get a used non-functioning logic board and harvest a switch from that or B. you can replace the logic board. Both choice would be considerably less expensive than a new iPod.
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