I upgraded from ubuntu10.04 to 12.04 and was not satisfied with the default desktop. The icons were arranged along a column at the left side of monitor. Initially I was told that the only way to avoid such pattern is to install other desktop so I installed lxde. But this presented another problem. Now I hear that using nautilus one can unset the default position of the icons on the desktop in 12.04. How can I do that? Can I create a horizontal panel at the bottom which was default in the 10.04 (actually was on top but configurable)? Please suggest steps for making these changes. Thanks.