The computer mouse points, chooses and clicks. Tradition reads it as making choices and directing attention; a mouse that will not respond, as feeling unable to act.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.