Comment 40 for bug 1016559

I tried all the other methods:
Only this method as stated by previous user has worked for me:

Commands:
cd /usr/bin
then
sudo cp dropbox dropbox1
then
create a new file called dropbox using command
sudo gedit dropbox
then write this:

#!/bin/bash

~/.dropbox-dist/dropboxd

then save and exit.
Then restart the computer.

This starts Dropbox automatically at startup.
Thank you.