Is there more than one user on your system? You can change the password reallyeasy. Here are some links to get you going. Please book mark.http://ubuntuguide.org/wiki/Ubuntu:Hardyhttps://wiki.ubuntu.com/Home?action=show&redirect=FrontPagehttp://ubuntuforums.org/http://psychocats.net/ubuntu/indexhttp://monkeyblog.org/ubuntu/installinghttp://www.linuxreality.com/http://ubuntuclips.org/www.unix-tutorials.com/tutorials.php?os=Ubuntu