Unable to use Ubuntu

I downloaded LP's Ubuntu OS version here .

It starts at the bootup screen but it seems that whichever option I choose, it always ends up booting without installing Ubuntu. It then opens what looks to be the desktop with no menu bar. Whatever I try to do to bring up a menu bar fails - there is no right click, and no response to any keyboard action.

I am stuck where to begin fixing / how to install a working Ubuntu OS on the LP. Thanks!!!