I have these 2 textbox which I have set as /required = false but the two could not be left blank. I need atleast one of them to be answered. Can you help me on how to trap this?
If the two questions are located on the same page, this isn't possible. You would have to put them on different pages, set the 1st question to required=false and have the 2nd question's required property depend on whether the 1st question was answered or not.
And by the way, is it possible to change question number format from "4)." to something like "4." or "4)"?
Turn of automatic question numbering and manually include the numbers in a question's caption.