My 2-year-old HP Pavillion notebook DV1000 went dark and now shows no sign of power, outlet, battery, Quickplay: nothing. Dead as the proverbial door nail. I attached an alternate power cable with no results. Could it be the battery? An error message blinked on just as the system went down (and too quickly for me to get the entire gyst of it) I'd like to say that it was the "power is low, connect to an outlet" message, but I can't be sure. Help!