The problem of the G4 restarting after Shut down is HISTORY. I found the problem and it was the USB to Serial adapter. I removed the Entrega USB to Serial adapter and the Shut down worked perfect. With the adapter in line the G4 restarts after shut downs. The clue was some comments by people on this list about items on the USB ports. The Entrega adapter to run a serial TNC (terminal node controller) was the first thing I checked and it turned out the be the problem. Anybody want to buy an Entrega USB to Serial adapter? Dick