Hi, I have a problem with office where it gave a warning message on startup that "there is a problem with office database." I found a solution for that which requires deleting the "microsoft user data" folder from documents. I was unable to delete this folder due to insufficient permissions so I ran "sudo chmod -R 744 ~/Documents." Now, when I try to delete the file my computer makes the "trash" noise but the folder remains. I'm totally lost at this point, please help.