I have a big problem with my Nokia 770. It will not turn on. I will plug the charger in, and the white screen with the Nokia logo comes on for a few seconds and then shuts off. It will do the same thing when I unplug it. At first the battery, the charger and the charging pod were suspected culprits, but all came back fine. When I plug it into my computer, the bluetooth symbol appears in the upper right hand corner, but only when the charger is plugged in. My computer says it found new hardware, but then the Nokia shuts off again. It's been like this for over a month, and nobody can fix it. What is wrong?