After upgrading to oneiric I want to tweak some unity settings, but changing anything with CompizConfig Settings Manager has no effect. I tried to relogin or reboot but it didn't help.
In natty I used only gnome (unity didn't started because of a driver issue). Also, when I first started ccsm, Ubuntu Unity Plugin was not enabled, which seemed strange to me. I enabled it, resolving some conflicts to make sure that each setting is enabled for unity and not the conflicting plugin.