I have a eSansa 260v2. It was working just fine. I was trying to learn how to set a preset in the Radio for my blind father. I scrolled to Auto Scan Presets, clicked it and it says it is scanning 87.50 and wont do anything else. I can't turn it off or anything. The power button all of a sudden doesn't work. is this a hardware issue? My only alternative right now is to let the battery die and recharge it. Why would it do this?