Some Text Boxes do not Print in Word

I am creating a document with several TextBoxes. The document is only 6 pages long, but has a few screen shots in some of the Text boxes.
The document shows well in Print Preview. but does not print couple of text boxes. Replaced, recreated. still same problem in the same location of the document.
What could be the problem?
Saved the doc as a pdc file. some other text boxes are missing now!