Now I use Xubuntu with Xfce so I have as standard file manager Thunar not more Nautilus like in Ubuntu. Thunar is light and fast and I really like it. However there are some features not integrated like in Nautilus.
For example mounting remote file systems!!! Unbelievable! In Ubuntu 11.04 I gave Déjà Dup my SSH destination and the backup started immediately. In Xubuntu 11.10 Déjà Dup told me that it was not able to mount the destination.
After some searching I found information here and here. For integrating fully gvfs support install:
apt-get install gvfs-backends gvfs-fuse fuse-utilsAfterwards type the following line into your console and add so your user to the group fuse.
sudo gpasswd -a $USER fuseFinally start Déjà Dup and you will see that a SSH connection is now possible again.