The form that you attached was saved as a Static PDF, but I think that
you need to save it as a Dynamic XML Form to get the field to
dynamically expand the way that you want it to. When I previewed your
form in LiveCycle Designer the plus sign was still appearing on the text
box when I tabbed out of the field, but when I saved your form as a
Dynamic XML Form then text box expanded to show all the text that I had
entered. See mytest2.pdf which I have attached here. Are these the
results that you ...