i bought a new powerbook 15" about a month ago at the apple store. battery was okay till today. it used to show around 2.45 hrs when i unplug it. now, it just shows approximately 20 minutes! i checked the battery information and here's what it says: - full charge capacity (mAh): 432 - remaining capacity (mAh): 425 - amperage (mA): 0 - Voltage (mV): 12532 - cycle Count: 8 please help! what do i do? is the battery pack damaged? thanks!