To make the image cover both monitors, you must set your desktop background to the "Span" or "Tile" setting in your operating system's personalization menu.
Using a single 2560x1024 image for a dual-monitor setup requires specific settings to look correct. 2560x1024 Moon Phases Dual Screen Wallpaper. 25...
Moon phase wallpapers are popular for their and high-contrast visuals. To make the image cover both monitors, you