If you have updated to the new version, you must remove the computer as added.
Quit the applet.
Then got to Account menu from the Ubuntu One web page and remove the computer from associated's.
The next step is remove the key from the gnome key ring.
And finally relaunch the Ubuntu One applet.
If you have updated to the new version, you must remove the computer as added.
Quit the applet.
Then got to Account menu from the Ubuntu One web page and remove the computer from associated's.
The next step is remove the key from the gnome key ring.
And finally relaunch the Ubuntu One applet.