Having an interest in computers and the Internet is one thing, but can going overboard with it qualify you for a deviant behavior diagnosis from a clinical therapists? That may depend on how much time you sit at the keyboard and how much that impacts your job, your family and your other important interests. Jennifer Hall Goodwin, president of business services firm Internet Girl Friday, has given it her own layman's term: "Screen Addiction." She sees it from time to time in her career, and it's even brought about the end of budding romance.