If I understand correctly, you are able to plug a monitor into any of the powerbooks so that the screen is either extended onto it, or you can just use the other screen. Now, if I were to buy the 12" powerbook with a max resolution of 1024x768, If i plug in a 17" monitor that is capable of more, will I be able to change it to a smaller resolution? The resolution is the only thing stopping me from buying these beauties!