Hi,
I do have the exact same problem!
I bought it off ebay, unopened box,
it charged the first time, and now, only USB to PC charges it.
I am really pissed off , except the fact that I don't think I can return it to ebay seller... you are luckier... to deal with amazon.
Let me know your solution, I am planning to contact to NOKIA.
There certainly is not a cable issue,
I tried 5v charger to USB - PC cable, didn't charge either, at this point, I am guessing another issue...
Please comment!