Downloads - Wallpaper Instructions   For PC Click on the resolution of wallpaper you want. When the image comes up on your browser window, right-click on the image. From your browser's pop-up window, select "set as wallpaper" or "set as background" (depending on your browser).   For Mac OS Click on the resolution of the wallpaper you want. Click on the image while holding the ctrl button, then from the menu select 'Download Image to Disk' to save it to your hard drive. In your Desktop Pictures control panel, click "select picture" (if you already have a picture, click "remove picture" first, then click "select picture") and choose the image. Click "set desktop" and close the control panel.