Hi, I have a Lenono 3000 N100, model name: 0768. It no longer registers when my power cable is plugged in, therefore only uses the battery to power, which lasts a short while but obviously isn't a long term way of powering my laptop. Has anyone else had this problem? I just try and plug the cable in and my laptop still runs from the battery. I have checked the cable in my sister's laptop and it works fine, so I know it's a problem with the laptop itself. The only way I can get the laptop to power via the cable is if i twist it around alot and then it may register with the laptop.