Windows STOP messages

I just had Windows reboot out of the blue (no BSOD, just as if I pressed RESET). Looking at the system event log it seems Windows ran into trouble: Event Type: Information Event Source: Save Dump Event Category: None Event ID: 1001 Date: 12/11/2007 Time: 3:19:32 PM User: N/A Computer: SKYNET Description: The computer has rebooted from a bugcheck. The bugcheck was: 0x100000d1 (0x00000000, 0x00000002, 0x00000001, 0xba940dc2). A dump was saved in: C:\WINDOWS\Minidump\Mini111207-01.dmp. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. A useful website detailing the STOP codes: http://aumha.org/a/stop.htm Also of interest is the KB article on dealing with the minidumps: http://support.microsoft.com/kb/315263