These wallpapers are available in a variety of different resolutions. If you're not certain what resolution your monitor is, here are a few quick hints: Most standard (17-19") 4:3 monitors have a native resolution of 1280x1024 pixels. Small widescreen monitors (19") have a resolution of 1440x900 pixels. Bigger widescreen monitors usually (22") have a reslution of 1680x1050 pixels.