When I use the combine files options in Acrobat XI Pro and add 3 files for a total of about 40 pages the final document only has 35 pages. I have done the repair feature under Help and the update action as well. When I do the updates I get a 1328 error, which says to uninstall and reinstall. I've done this twice and no change. The combine files are a combo of Word and Excel files. Can someone please advise?