Thank you for your bug. It works fine for me on an usb key or a partition or a CD. Do you have any error to .xsession-errors about that? Do your devices have the correct icons used?
-- Missing "Unmount" and "Eject" context menu items for removable volume icons https://launchpad.net/bugs/72520 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs