ASUS motherboards - "Last boot unsuccessful"

[Paul Goyette <paul%whooppee.com@localhost>]

I've got a couple of AMD systems on ASUS motherboards, and they've 
recently started complaining that the "last boot was unsuccessful" when 
rebooting via 'shutdown -r'.  This only started happening recently (in 
the last month or so).  Since I can no longer reliably reboot these 
machines, it slows down testing immensely - I can no longer test while 
I'm remote (ie, at the day job!).

Does anyone know what the ASUS BIOS might be checking to make this 
determination?  And is it something we an control?

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