[ubuntu-uk] madness strikes

[norman]

In a fit of mental aberration I decided to have a good clean up of my
computing equipment and surrounding area so, for the first time for some
time I switched off. Alas and alack, when I switched back on and logged
in I was presented with a blue screen and a whole new desktop
arrangement with unfamiliar looking icons. The only clue I could find
were the letters 'xfce' and I found, using synaptic, that there are lots
of installed items with those letters.

Please, please, how do I get my user friendly and familiar browny,
orangey looking desktop back?

Norman