I have installed Nemo (a fork of Nautilus created by the Linux Mint Team) in my Ubuntu 12.04.1 LTS with Gnome Shell 3.4.2. I followed the instructions DefaultFileManager on help.ubuntu.com, changing the "inode" and "x-directory" in the file "defaults.list", to make Nemo my default file manager.
Now everything works perfectly, except for one thing: opening folders from desktop.
I have set the option "Have file manager handle the desktop" on. Cool. The problem is that the desktop seems to be handled by Nautilus only, even if I have set another file manager as default. Every time I double click a folder on the desktop, it is opened by Nautilus, not Nemo.
Does anybody know how to fix this?