I've installed Windows 8 on a single-screen desktop computer.
I can't, for the life of me, get the desktop wallpaper to change. I have done two things:
1) I right-mouse click on a file that contains a wallpaper in the explorer and select "Set as Desktop Wallpaper". I notice that the border around the explorer window flashes yellow for about 0.1 seconds and then nothing happens.
2) I've gone into the personalization section of the control panel and selected the wallpaper there, but nothing changes.
I've also noticed an odd thing. If I set the desktop to a solid color, it will change, but then when I once again select a wallpaper, it doesn't matter what I pick, I get the default wallpaper with flower.
One more odd thing. If I go into the themes section of "Personalization" and click on one of the themes there, I still see the sunflower wallpaper.
I know that I'm not the first person to have this issue. It see it discussed here: http://www.tomshardware.com/forum/1306-73-desktop-wallpaper-doesnt-change. However, there is no proper solution mentioned on the aforementioned thread.