i just got a 14" 1.42ghz ibook yesterday which may have a problem. or may not. great screen by the way. when i start up the machine after the chime i am greeted with a flashing square showing a picture of north and south america. this continues for about 20 seconds and then it's replaced with the flashing question mark folder. this also continues for about 20 seconds and then the machine will start up normally. anyone have any clues what is going on? battery is dead so i know that i'll have to replace that. machine works fine with the power adapter and quickly wakes up from sleep.