Please help! My laptop has just gone kapput and I don't know if it's the adapter, the battery or the PC itself. There is no power at all. I've tried it in several different sockets, and other items work in them anyway. I didn't notice any alert before it turned off but was concentrating on the work (stupid Vista alerts are hardly noticeable anyway). Does anyone have a Gateway adapter (and maybe a battery?) I can try to see if that's the problem? It says output: DC19V 3 42A. I'd be so grateful for any help!!