After 18 months of faithful service, my UNIX PC has crashed twice in the past week with the error message: panic: NMI (kernel parity error) I have no idea what this means! HELP! -- Olaf Henjum (att!ihlpf!olaf) P.S. So far, nothing's been trashed by this error, but it's always happened when nobody is logged in, too. -- OIH