How to disable automatic updates (10.3)?

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http://forums.opensuse.org – Hi, Given 10.3 has just been discontinued, there won't be any more updates. But I can't find how to disable automatic updates... According to the manual, the applet config should offer an "automatically start updater on login" checkbox, but mine doesn't (Gnome). I couldn't find in Yast either. Thanks in advance. (Distributions)