Because for the second time in a week, I've had PC trouble. Last Friday, it was a boot drive that disappeared from the sight of the PC (though happily, a wiggle of its cables brought it back).
This time, it's another case of the Dell 24" monitor not liking powering up. Yes, a mere month or two after bellinghwoman's let out its magic smoke, so has mine. At least we know how to get Dell to cough up a replacement. But in the meantime, anyone running a Dell 2405 WFP beware - there may be a batch that is dying at between 24 and 30 months, with power supplies not liking turn-on current surge.
So, for now, I've got the little Acer flat screen out. At least it coped with the full 1920x1200 signal - just panned the screen round the desktop.