(Copying my comment from bug 837660)
This is caused by incorrect flags in ubuntuone-control-panel-gtk.desktop.
Fix: --- Categories=GNOME;GTK;Settings;DesktopSettings;X-GNOME-Settings-Panel;X-GNOME-PersonalSettings +++ Categories=GNOME;GTK;Settings;DesktopSettings;X-GNOME-PersonalSettings
(Copying my comment from bug 837660)
This is caused by incorrect flags in ubuntuone- control- panel-gtk. desktop.
Fix: GNOME;GTK; Settings; DesktopSettings ;X-GNOME- Settings- Panel;X- GNOME-PersonalS ettings GNOME;GTK; Settings; DesktopSettings ;X-GNOME- PersonalSetting s
--- Categories=
+++ Categories=