I installed 11.10 beta when it was released a couple of weeks ago. Everything is working fine.
Later I installed gnome shell and then upgraded it from the gnome-shell testing ppa. I also installed and enabled all the gnome-shell-extensions available on the ppa. There is only one problem. When ever I switch to a theme which has a transparent gnome-shell menu I see nautilus menu behind it. It only disappears when I quit nautilus. I don't know I to get rid of it so that I can use use themes like Nord and Malys properly.
Here is a screenshot: