root filesystem occationally not found

[dave]

Hello,
    This is an ATA disk, and it's very inconsistent, like i said i don't
reboot this box often, sometimes when i do it works, other times it doesn't.
As of last night i installed smartmontools on the box, see if that shows
anything. The system is an athlon 2400xp with an MSI motherboard, can't
remember the model number offhand, but it's brand new, as is the power
supply. The ram and processor are from my old abyt board which is where this
drive came from before that board went bad, but memtest86 on the ram didn't
show anything there. It is frustrating!
Dave.