Hello, I must admit that this is a little odd. I have been using PCs for as long as I can remember. Now after switching to Mac I am a little lost. So I just purchased an iMac and have fallen in love. Right out of the box this system is awesome! Network set-up was automatic, internet connection, automatic... can you still say you set-up your computer when the computer does all of the work? Anyhow I need help. I have Leapord and can not find Spaces, Stacks feature, or Time Machine. For Spaces I have a Dashboard/Expose icon with no spaces tab/button. Everything I reference states Expose/Spaces. Nothing on harddrive that comes up when I search any of the above terms. I am really confused... any help would be greatly appreciated.