prashant@VAIO:~$ compiz --replace ccp & disown
[1] 10231
prashant@VAIO:~$ Checking for Xgl: present. 
Checking for nVidia: not present. 
Checking for Xgl: present. 
/usr/bin/compiz.real (core) - Warn: Plugin 'core' already active
/usr/bin/compiz.real (core) - Warn: Plugin 'ccp' already active
Starting gtk-window-decorator
/usr/bin/compiz.real (video) - Warn: No 8 bit GLX pixmap format, disabling YV12 image format
GConf backend: There is an unsupported value at path /apps/compiz/plugins/scale/allscreens/options/initiate_edge. Settings from this path won't be read. Try to remove that value so that operation can continue properly.