Why won't my iPod sync or charge?

As of yesterday, my iPod will on longer sync to iTunes, or even charge when it is plugged into my computer. I've gone through all of the trouble shooting options apple has (that means restarting computer and iPod, reinstalling iTunes, using a different cable, using a different usb port). I've plugged my iPod into a different computer, and it begins to sync. I've tried another iPod on my computer and it works as well. It seams to be that my iPod and computer will not work together. The iPod isn't even recognized in My Computer. Can anyone help?