Comment 11 for bug 1238410

Per duped Bug #1237218, the manifestation I see of this is that very occasionally I log in (not having touched the mouse at all so I'm unsure if it is working on the greeter screen), and I find that there is no mouse visible in Unity. It is still active, as I can use the invisible mouse pointer to click on things. Using keyboard navigation to log out and then logging in again, the problem is probably gone and the mouse pointer visible again.