Hi all, Running 10.4.10 if it makes a difference. We've had a home Mac running X since Jaguar first came out. The computers have always been set up with a single User account that everyone used. Last week I decided to create accounts for my wife and each of my two kids. That way they can stop messing up "My" computer. I use said Mac for my home based business. Being a Graphic Designer I use a lot of resource heavy software. Does having the other three users still logged on use up some of the resources available to me? If so, is it enough for me to be concerned about? Should I instruct them to log off when they are done using the computer? Thanks Mark Des Cotes Owner-Graphic Designer Marksman Design Mailing adress: 7-841 Sydney Street, Suite # 338 Cornwall, Ontario K6H 7L2 Canada 613-936-6876