How to set up a Screensaver Slide-show in Windows XP
When you leave your computer on, but unattended, your Desktop will switch
itself off, leaving your Screensaver on. You can set up the Screensaver to
show some slides, while you’re doing something else, e.g. listening to the radio.
Do a right-sided mouse click anywhere on the Desktop (where there's a
clear space).
Select Properties and then Screensaver.
In the lower half of the Screensaver section, click on the little arrow alongside
where it says Windows XP.
Select My Pictures Slideshow > Apply > OK.
You might find that doing this might delete a photo that’s been on display on
your Desktop. If so, then you would have to re-install this.