compiz --replace
libGL warning: 3D driver claims to not support visual 0x4b
/usr/bin/compiz.real: Another window manager is already running on screen: 0
/usr/bin/compiz.real: No manageable screens found on display :0.0
08:04:45@~ $ Window manager warning: Failed to read theme from file /usr/share/themes/Clearlooks/metacity-1/metacity-theme-1.xml: Failed to open file '/usr/share/themes/Clearlooks/metacity-1/metacity-theme-1.xml': No such file or directory
Window manager warning: Failed to load theme "Clearlooks": Failed to open file '/usr/share/themes/Clearlooks/metacity-1/metacity-theme-1.xml': No such file or directory