Hi all, When I was running tiger, I could install and use "The Sims 2: Happy Holiday Stuff" perfectly fine. On Leopard, I cannot install it. It just gets onto the "Select an item to update" screen and displays a "An Internal Error has occurred. You will not be able to use this software" message. When I press the other button to select the Sims 2 app, the app is not selectable. However it was on Tiger. Can someone please help me? Thanks.