Hello, I've recently purchased a used MacBook w/ OS X 10.7.2, and this is my first experience with something other than a Windows machine. I have a situation where I cannot move files/folders on the desktop. When I pull up the Activity Monitor it lists the user as the person who previously owned this laptop. That person's name also comes up when I do a "Get Info" for the desktop items. Folders are accessible when I want to attach a photo to an e-mail, but I can't figure out how to change the user to me. Thanks in advance for any help... Jon Well now, I just did a Restart and all is well in terms of being able to move them around! Huh! What caused the temporary situation I wonder? What did I do to cause this?