PROBLEM SOLVED! I deleted the Minimo Repository from the Application Catalog, and that permitted the Application Manager to work again. Whew! But anyway, I don't think I want to again attempt to install Minimo as a means to get Abiword to work for me. I'll wait to see what other less risky methods are suggested. However, I do appreciate all offers of help, even if they don't always solve the problem for me.