Not charging or syncing.

[Marilyn Murder]

I've had by pink 30gb zune for almost a year now, and i didn't have any problems. My friend has gone through atleast 4 of them.
But when I plugged my zune in today to charge, my dock doesn't even recognize it. (My zune usually lights up when it does.) I try using my old usb cable and it still doesn't. I'm having trouble with syncing it too.