I have a problem with the battery charging, the laptop runs fine with the ac adapter, it has a brand new battery, (the second one now because i thought the first battery was defective) so it is not a battery issue. With a volt meter I checked the pins on the bottom of the laptop that go to the battery and kept the adapter plugged in, nowhere on any of those pins (and why so many for a mere positive and negative!)is there any voltage near the 14.8 VDC the battery needs to charge. It's as if there is a disconnect between the adapter (which reads 19 VDC) and the laptop battery. The computer runs fine with the adapter plugged in but dies immediately on unplugging the adaptor