Not too hard. You just need one action on each button. The button takes you to a question. That question has an Associated variable. Its initial value is null (empty). Once you have done something to answer the question, it has a value. So, back on the page where the button lives, add page level action that says:On Show, Hide, Target: (select the button from the list) and then on the Condition tab:Question variable Not Equal To (and leave the last box blank) or if you are using 2007 you can select Not Empty (or something like that).
