We got a new computer tonight: a nicely-equipped Asus CM6850-07. One of the first things it suggests is to create a set of recovery DVDs. This sounded reasonable, so I followed the directions to insert a DVD-R and reboot.
When it did boot into the "Asus System Recovery Tool", though, it wouldn't respond to any input!
It took me a long while to realize that the keyboard and mouse had to be plugged into the topmost USB ports on the back (where the old mini-DIN keyboard/mouse connectors used to live).
Anyway. Live and learn.