This has been going on for about a month. My iPod is flashing a battery icon, it is also not colored. I have t ried charging it and that has not worked. I have tried the apple support page, I tried all of the available options, but none of them have worked. I have also had the folder with an exclamation point. I got it to work once on my Windows computer by upgrading the software, but when I switched to my new iMac, it went back to having those problems. I have the updated firmware and iTunes.. Any suggestions?