I think it is a "conflict situation", because I just run `gconftool-2 --set --type=bool /apps/metacity/general/compositing_manager false` and `compiz --replace` worked!
I think it is a "conflict situation", because I just run general/ compositing_ manager false`
`gconftool-2 --set --type=bool /apps/metacity/
and `compiz --replace` worked!