WinXP Home My daughter is experiencing unexplainable blue screen crashes and the machine automatically reboots. The error message is not on for long enough to read, but she did catch a glimpse of part of the message, "machine_check_exception" . ...................... There is no pattern to what software she's using when it happens - it seems random. I have turned off the Automatically Restart in control panel>system. Can anyone offer a diagnosis & solution?