So a while back I installed the Linux based Ubuntu along side Windows (dual boot) on my desktop (see my post here). And then, I installed a lighter version of Ubuntu on my daughters little HP mini, called Xubuntu. I liked the Xfce desktop she had better with Xubuntu, and thought about erasing Ubuntu on the desktop and starting over and installing Xubuntu, instead. But then just out of shear luck, I found a site that walks you through how to just switch from the Unity desktop in Ubuntu to use the Xfce desktop without erasing everything and starting over. Cool! Here is the link!