When I turned the computer back on, it made all the usual noises, but the screen stayed black. I turned it off and turned it on again. Nothing. I turned it off, unplugged it at the wall, waited 5 minutes and turned it on again. Still nothing. Then I did what I always do in such circumstances:
It's somehow far more frustrating, knowing that the computer is working fine, sitting there eagerly waiting for me to click the right buttons, if only I could see them! At least I have John's laptop to play on while I wait, but it looks like I am going to be doing the late shift tomorrow night.