Anyone else had any problems replacing the GNS-I60 battery in their Gigabyte P35w v5 ? Do you have to change any settings after fitting a replacement battery? With new battery fitted and disconnected from mains the laptop boots to windows but near end of boot process laptop instantly switches off. (desktop in process of being populated with icons). If boot with mains connected then disconnect mains everything works fine including stress loading the CPU and GPU. Also tried a couple of discharge/charge cycles. When I plug in the original battery laptop boots fine. Supplier is sending another battery but I thought I would ask in case I am missing a config/setup step.