Maybe I misunderstood this Apple Security Update for 10.4.11 that led to the endless loop "your network settings have been changed ..." message. Are you saying that applying the update from Apple means you are protected from the security flaw, and the endless loop "network settings" in the Preference Pane is more of an annoyance than anything else? If so, maybe I misunderstood the long Macfixit thread about this.
the flaw he speaks of was the storing of passwords in easily recovered format outside the keychain.
That's what i tried to say back in May (though the thread itself seemed self-explanatory):
linky
