This laptop computer has been frustratingly slow. I could walk away from the computer and “do” an unrelated task before the computer was ready for the next request. So I ran “maintenance”… and nothing was/is wrong. Then, the bright idea: “Maybe the mouse needs a new battery?” Yup!! The mouse responded quickly with a new AA battery. “Too late smart” because this same problem occurred recently and I finally attributed the problem to the battery. Now I know a high-quality battery only lasts about a month. FYI: I “wore out” the “mouse” on the laptop mouse-pad (which I prefer) but was forced to purchase the auxiliary mouse.