Acer Aspire 5100 Laptop belongs to college student nephew - trying to troubleshoot non-responsive keyboard & mouse. Boots to desktop, eventually times out and shuts itself down after 5 or 10 minutes. Will not respond to keyboard, touchpad, or usb mouse. Won't boot to safe mode or go to setup screen. No keyboard response before or after windows loads. Have forced it back to a Windows repair screen through forced power-down, runs through lengthy repair process and comes back to same condition. Is there anything else to try before I box it up and send back to Acer for repair? Seems like it should be a solvable problem, but no magic I can "conjure" up to get at the tools???