hey i am new and i need help. i have a ibook,i boughtit from my sister, she had it 3 years, no problims, i use it for homework, no internet or anything. still had lots of memory, i was doing homework, it got hot i turned it off, now it doesnt wanna work, it boots to the grey apple page but it freezes the little spinny thing doesnt even come up, it wont go any further, the cd thing wont open unlessit gets to a sertain page when its booting up, then it like freezes and wont open, kinda sucks, but i tried to reinstall the os, it doesnt do anything, is there anything i can do to fix it, i need help cuz i wanna hurt it really bad, please help me