Can't put values into prebuilt textbox

[badbane]

I have a document that has a cover page with several text boxes. I just want to type in the company name in the text box name title on the cover page and then update the heading to include the title of the document. Problem is when I try to simply test the name of the textbox on the cover I can't change the text in it. The title of the text box is "Title" and on change I want to simply copy the text in "title.textframe.textrange.text" when the value in the title texbox changes and put it in Header.textframe.textrange.text. But I can't even read a value into title.textframe.textrange.text .