A user attitude survey was conducted in the main library at the University of Oklahoma before and after the opening of a new library wing which effectively doubled the size of the main library. At the time of the opening of the new wing, the circulation department began using a new computer system for circulation of the general collection. The survey included questions concerning the new circulation services, the new building facilities, and the collection arrangement, and was administered in the last month of the spring semester before the new wing was opened and in the last month of the following fall semester. Approximately 250 questionnaires were distributed each time. A return rate of 90% was achieved the first semester and 67% the second semester. Although changes in the facilities and services were dramatic, general user satisfaction did not appear to be affected. However, changes in users' opinions about some specific services were noted. High user expectations, a nonspecific survey construction, and multiple-service changes are discussed as some of the possible reasons for a lack of detectable change in overall satisfaction. The library survey and a 12-item bibliography are included. (Author/THC)