hi i just got an ibook from my sister this week and its from 2001, a 500mhz model. i bought an airport card to use on my netgear wireless router and also bought jaguar. wiped the laptop clean and installed everything fine, the battery indicator on the top taskbar shows it at %100. the button on the battery itself when pressed shows only one light come on and it blinks. if i unplug the power cord the laptop might run for 5 minutes. is there a way i can cycle this battery maybe and see what the problem is? i hate to buy a battery since i just spent $230 on the card and os, then it turn out to be something else. maybe its not being supplied the juice to get a charge? im a new mac user so any help is appreciated.