Add Dropbox Indicator to Ubuntu Natty Narwhal

Installing Ubuntu perfect, everything works fine, and start to sync my Dropbox folder... And oh, surprise. Could not see the icon. Then I remembered that now I had to display the Notification area. I tried upgrade to the latest version and still did not receive the icon.

So I searched and found this solution that can enable the display of Dropbox, or AppIndicator, which will display on our