My girlfriend, who goes to another college so is 6 hours from me, just bought a new 12" PB, and now it won't turn on. It is plugged in, but she hits the power button, and nothing happens. No light comes on, nothing. She said that for a moment she thought she felt it vibrating like it was working, but she thinks she may've imagined that. Can anybody help? She doesn't have time to take it to the Apple Store for a few days, so I would most appreciate any assistance anybody can give.