OH MY GOD. Why won't my mac turn on?! ibook?! IBOOK?! What does this button on the bottom even DO?! Did it get too cold? I remembered to take it in last night! Is something wrong with the power cord? *weeps a frenzy of weeps* I took out the back battery thing and put it back in, thinking that usually did it for my hp, and now it just makes this sad little "kchao!" sound when I try to turn it on. Would best buy know what to do with it?