Can I prevent row heights from changing?

I'm using Word 2007 to create some form templates by using text form
fields inside table cells. This mostly works well except that some of
the text form fields are free-form entry. I've allowed enough space
within the cells to accomodate a reasonable and expected amount of
typing but I the row height keeps increasing even though the cell
height should accomodate several lines of text.

I have unchecked the table option "Automatically resize to fit
contents" and the rows have specified heights "at least".

Any suggestion on how to lock the row heights?

Thank you.

Never mind, I'm an idiot.......