Can't shut down - get restart instead

[whisper]

Within the past week or so this new problem came up and I can't seem to successfully shut down. Instead, Windows goes through the shut down routine but then reboots, instead of shutting down. The only way I can actually "shut down" is to kill the power by flicking the master switch on the power supply.

Is this likely to be a Windows thing, or a hardware thing (i.e. motherboard, bios related, etc.)? Everything else seems to be running fine but I'm afraid this may be a warning sign of bad things to come. Any ideas?

 

[whisper]

^bump^

 

[TechLarry]

Check the BIOS power settings. Some MB have settings to cause this.

-Larry