Hi....I wondered that myself and you CAN do it. You have to go into your START menu.....to CONTROL CENTER......look down at bottom for LOGON MANAGER ....in there you have be administrator to do anything....so look at bottom of screen where it says administrator mode. You will click on it, get a screen where to type your password....then look around in there in the tabs....one of them has a section on the right hand side where you can choose another background image, and also you can choose images for USERS. I have a picture of myself for me and a picture of the LINUX PENGUIN for ROOT! Just look around in there and you will find it...bob58