Thanks for you speedy reply. After working with the board for quite a while, I noticed something foreign sticking to the bottom of the board, packing material or something. Very small. I removed it with my fingernail and tried booting from the SD card again. This time it worked fine! The foreign material (speck) must have been providing a low impedance path preventing some circuit from functioning. Since then I have been moving along starting to work with the Galileo, transferring python scripts with WinSCP and calling them from Arduino sketches and ssh using putty. Again, thank you for you speedy reply, it was greatly appreciated.