If compiz is already enabled you can go from one desktop to the next with ctrl-alt-arrow_keys, or if the cube is enabled (I doubt it):
win-right_click and drag.
Depending on what compiz plugin you have enabled that will give you different effects.
You can configure them in Administration - Look and Feel - Desktop effects
(I believe - probably a little different, I don't have Ubuntu installed right now.)
You might have an "advanced desktop effects" button there. If not - install ccsm.
Applications - Add/Remove
select: "show all"
search for ccsm, and install it
then you can start it either by typing:
or by going into the desktop effect settings.
Just play around with the settings... there's a lot of stuff you can do with it.
If it gives you any trouble, you can switch back to the default gnome window manager by typing:
metacity --replace &
either in a terminal or in the launcher (alt-f2)
Last edited by oskar; 06-25-2008 at 12:33 PM.