so i got me a nice ibook, as a gift from my parents for getting good grades in my sophmore year of highschool. so its summer now, and i expected things to be hot. but for some reason, the fan never turns on, it has one i know it. a few times i heard it after i press the power button to turn it on. but then a couple seconds later, the fan slows to a complete stop before i see the backlight on the monitor thingie. i downloaded a widget that gives me the cpu temp and everything. the highest its ever gotten is 57.7 under load(gaming). and still no fan. is this a problem, or am i just too worried?