The symptoms are identical on my setup, but the fix on comment #4 doesn't work for me - the username just gets reverted when I try to install from USC again. But I did change my username on Ubuntu One in the past and it's the old username (the one I probably purchased under).
The symptoms are identical on my setup, but the fix on comment #4 doesn't work for me - the username just gets reverted when I try to install from USC again. But I did change my username on Ubuntu One in the past and it's the old username (the one I probably purchased under).