My friend has a Sony laptop, model PCG-971M, which he had for two years. Operating System is Windows XP Home Edition. The problem started only a few weeks ago, otherwise it was working fine before. When he shuts down the computer (by doing Start -> Turn Off Computer -> Turn Off), the computer goes through the normal Windows shutting down procedure, but then it automatically restarts instead of completly powering down. The only way of powering down the system is by enforcing a power-off by holding down the power button on the laptop, but then the PC has to go through the checking process next time he starts up. Does anyone know how to resolve this? Thanks.