Young lad hasked my advice but I am stummped Running XP Pro system was working OK. Since updating from Dial up to BT Broadband have a problem as PC keeps on rebooting . Each time I get the message "System shutdown granted by NT Authority". I have run stinger to find Pate.B virus. Does this virus do this? Or is this a red herring. What is causing the reboot. How can I help rid the problem. Have doenloaded Patch for the virus.