Pete has an HP All in One with a second monitor. He wants to drag from one monitor to another but it won't work. Leo says that you need to be sure your screen driver is set to extended desktop, not mirrored. Leo says you may also have the monitors out of order in your display settings. So if you drag the opposite way, it may work fine. Easy fix though. Just rearrange the monitors in your display settings. Systems. Settings. Display.