I just purchased a 15" MacBook Pro Touch yesterday. Last night when I got it home I noticed that the G key would not respond. I tapped it about 10 times and it started functioning normally. That was it until a few moments ago, when the G key stopped responding again. Another 10 or so taps and it was back to normal. Clearly something is going on. Has anyone else experienced anything like this? Is it software, or should I be heading back to the Apple Store?