
The picture background is just that, a picture background. If you select a theme this will change from Classic (which is a theme) to whichever them you select. The trick is to select classic and then change the background picture, not the theme. To do this, select the "Windows Classic" theme. once that is applied, at the very bottom of the theme selection Window are for icons; Desktop Background, Window colour, Sounds, and Screen Saver. To change the background picture, select "Desktop Background" then select the location of the picture from the drop down list and put a check nect to the picture (or pictures if you want them to change at an interval) that you want and click save changes. thats it

