I am using Ubuntu 13.10. I usually use Cinnamon and Gnome shell and had removed Unity and related packages. I re-installed Unity, and everything works fine except that the mouse pointer is no longer visible. It would help if anyone can suggest some ideas to resolve the issue.
I have a Dell XPS 15z L502X with a GeForce GT 540M card. I am also using Gnome shell 3.10.1 and Cinnamon 2.0.12.