When I initial shutdown... it does so normally...

Question

Yes, shutdown is good... but it's more like RESTART than SHUTDOWN... as about 1-second after the power is off... the computer automatically reboots and is back with us. I have to shut the power supply switch off during this 1-second interval to have it not power back up.Turn the computer's power supply switch back on after 2-3 seconds, and nothing RESTARTS until I push the start button. What should I be looking for to resolve this?Rob Walker