I've only had a couple of hours to look around Windows 8.1 but I've already found something so disastrous that it's ruined the whole OS for me. I have the Surface Pro as one screen, running the Smart Screen... and an external monitor that I extend to running the desktop. It was never perfect, as when I hit the Windows key, it showed the desktop on both screens (rather than just on the external monitor) but hey, I learned to live with it. This has changed in Windows 8.1 I still run the Smart Screen on the Surface, and the desktop on my external monitor, as before... but when I hit the Windows key, the external monitor reverts to the Smart Screen!? It just doesn't make sense. Firstly I didn't even think it was possible having Modern UI on two separate screens, but I guess that's an 'improvement' of Windows 8.1 The only way to easily get back to the Smart Screen on the Surface is to shut down whatever app I'm running (which I don't want to do) which for some god forsaken reason takes me back to the desktop... totally the wrong way round!? Anyway, then I click on the Windows button on the superbar. If I can't get this back to how I want it, can I go back to Windows 8.0?