Søren: > a) The yoyo-effect continues forever This (and your other descriptions) exactly match the story that Daniël mentioned before: the Dutch Geradts/Verhagen story. --Harry. Harry Fluks -- TNO Telecom -- Delft -- Nederland h.w.fluks at telecom.tno.nl -- http://dd50.inducks.org "Wie ben ik? Wat doe ik hier? Waar is mijn Roddelflop?"