Hi, Recently, I have no idea what I did, but Leopard will only show one open window at a time. Whenever I click on a different application in the dock, the application I had open hides and the new application window is shown. Similarly, if I click on my desktop which is Finder, only finder windows are shown. Also, normal behaviour is opposite, as option clicking an application is supposed to hide everything else and only show that app but now that allows me to have multiple windows open. Any help would be appreciated this is a pretty big issue!