few changes have to be made to the file /etc/X11/xorg.conf.
In Section "Module", make sure you have
... n "Extensions", add one somewhere (still in your xorg.conf) :
Section "Extensions"
Option "Comp... tomatically. Ensure that it does :
cat /var/log/Xorg.0.log | grep -i aiglx
which should say (==) AIG... ue"
to Section "ServerLayout" of your /etc/X11/xorg.conf.
===== Compiz =====
Compiz's installatio