Hi, I'm trying to install Ubuntu 14.04 on a Dell Inspiron 3451 laptop using a bootable USB. Once ubuntu loads, everything appears to work fine except that there is no cursor visible and the touchpad is unresponsive. The keyboard works fine, so I am able to use the terminal.

Is there some kind of Synaptic driver I can install in order to get the mouse working? And if so, what is the command to do so?

Thank you in advance.