I've had my latop for less than a year. In that length of time I have gone through two - count 'em, two - Targus PA248U Notebook Chill Pads. The first one lasted about 3 months before it was dead-in-the-water. The second one lasted less than a month. They were not continuously on, nor were they dropped, folded, spindled or mutilated. They just stopped working. I will not be repeating this mistake.