HP has recalled about 6million Laptop Power Cords which may overheat and pose a potential fire and burn hazard. The affected cords have an "LS-15" molded mark on the AC adapter end of the power cord. Sources Hewlett-Packard Recalls Notebook Computer AC Power Cords Due to Fire and Burn Hazards | CPSC.gov Hewlett-Packard Recalls Nearly 6 Million Power Cords Because Melting Doesn’t Charge The Computer – Consumerist HP Recalls 6 Million Power Cables Over Fire Hazard - Slashdot
...Remedy Customers should immediately stop using and unplug the recalled power cords and contact Hewlett-Packard to order a free replacement. Consumers can continue to use the computer on battery power. (until it runs outta juice .. then they are done until the replacement cord arrives)