It's been a few months since we've used our iPad and the last time we used it the battery went all the way dead. Now that we want to use it again, it's completely unresponsive to any connection to iTunes or to the computer at all. The light won't come on and holding down the Home and Sleep/Wake buttons at the same time for 10 secs doesn't do anything either. It's as if it completely died. All of the tips I've found online say that holding down those two keys at the same time will perform a miracle, but so far they've done nothing for us.