The purpose of this study was to explore the interplay between young people's attitudes toward computer networks and Internet addiction. After analyzing questionnaire responses of an initial sample of 615 Taiwanese high school students, 78 subjects, viewed as possible Internet addicts, were selected for further explorations. It was found that subjects' attitudes toward computer networks could explain many aspects of Internet addiction. However, students' perceptions or behaviors on actual Internet usage are more important than their affective responses toward computer networks in predicting students' Internet addiction. (Author/MES)