Recently, my iPod just started to fail. I would tap an icon, but it won't open. So, I restored the iPod without any troubles. Now, when I plug my iPod into my computer to sync, Windows has a message saying "USB device is not recognized." However, I am able to use the iPod normally, I can open my apps and Play em, but the iPod wont sync at all. Plus, when I plug in my iPod, there is no "charging" icon at the top right, just the battery indicator. And, when I put my iPod into my wall charger/Dock, it works. Help please?