A study of use of an interactive computer system (CHESS--Comprehensive Health Enhancement Support System) by HIV-Positive people was conducted in Madison and Milwaukee during Fall 1992 and Winter 1993. Computers were placed in homes, and use monitored by the computer. Results showed that the system was used heavily by both samples, and that gender (women used it more) age, (younger used it more), living arrangements (those living alone used it more), and need for health care information (those who felt the most need used it more) but not education predicted use of CHESS. The authors argue that heavy CHESS use by a wide variety of HIV-positive people suggests that the computer can overcome "information poor" barriers in health information campaigns.