Ubuntu 7.10 Gutsy Gibbon comes shipped with Compiz Fusion pre-installed, which means less tinkering with sensitive configuration files. For most part, Compiz needs proprietary drivers for your graphics card to work properly, so make sure you install those if needed.To enable desktop effects, turn them on by navigating your GNOME-menu to System > Preferences > Appearance. Under the tab Visual Effects you’ll find three settings; None, Normal and Extra. To turn Compiz on, choose one of the two latter.
If you wish to customize your Compiz options and plugins, such as animations and Desktop Cube, first install the configuration tool:
sudo apt-get install compizconfig-settings-manager