In Pictures: Making the most of Windows 8 - the di...
Mitigating the misery of multiple monitors
If you have the legacy desktop across two screens, icons in the taskbar are duplicated across both screens. This can be confusing: For example, if you go to screen 2 and click on an icon for an app minimized on screen 1, it restores on screen 1, not 2. Charms work on all monitors, but finding them can be tricky. With a single monitor, you can flick the mouse to the right edge of the screen and the charms bar will appear automatically. If the right edge leads into the left edge of another monitor, you'll need to slow down and feel around for the charms bar to appear. On the plus side, wallpapers can now span multiple monitors.
In Pictures: Making the most of Windows 8 - the diehard's guide