If Compiz doesn't work well on your computer, you can always try to enable Metacity's compositing manager. To do this, press Ctrl+Alt+T (opens a terminal window), then run gconf-editor
. On the left side, browse to apps > metacity > general, then check the box corresponding to compositing_manager
on the right.
[EDIT]: Visual help to configuration manager:
Open dash and type Config on the search field. Proceed to selecting configuration editor.
After you have opened the configuration editor, browse to apps > metacity > general, then check the box corresponding to compositing_manager
on the right, like this (my mouse pointer shows the box you should check):
Hope this helped.