Computer shuts down and reboots. Running XP, replaced hard drive at suggestion of computer service tech. Good for about 2 months, problem back. Running Nortan Security.1 person needs an answerI do too

Check Adminastrative Tools>Event Viewer for any errors prior to shutdown. And modify the option not to reboot on BSOD error, that way you will see the BSOD error msg

The "not reboot on BSOD" setting is in Control Panel->System->Advanced tab->Startup and Recovery settings->System failure box->Automatically restart (clear the checkbox)