So I switched to Gnome Shell on my 11.10 install. One annoyance is that whenever I insert a removable drive, nautilus opens the drive and at the same time gnome shell displays its popup. I discovered that killing the "gnome-fallback-mount-helper" process solves the issue. My question is: how can I kill the process at startup or better yet stop it from ever starting. Thank you in advance!
You can prevent nautilus from opening the drive automatically and just use gnome-shell's function for the media handling.
To do this open
gnome-control-center from a terminal and search for 'Removable media' option in the dialog. There are all available option for removable media (cd, dvd ... etc) in that window.
For example to prevent nautilus from doing anything when a CD disk is inserted just choose the appropriate option "Do nothing"...
In the same way you can choose the option for various media types.