The problem seemed to be the SD card. I had followed the instructions here: http://computers.tutsplus.com/articles/how-to-flash-an-sd-card-for-raspberry-pi--mac-53600 for getting Raspbian onto the SD card. Everything seemed to be successful, but as I posted, the pi would not boot. I re-formatted the...

Hello, I have just powered up my Pi Model B for the first time. But I get nothing. The USB keyboard doesn't seem to be working, and there is nothing on the screen. The screen is VGA, and I have an HDMI to VGA adapter. The PWR light is on. Connecting a voltmeter to TP1 and TP2 shows 4.8V. I have a Le...