ITauthor

There's a periodic problem with creating PDFs where the application you’re using to create the PDF (e.g. Word or FrameMaker) crashes or, worse, it completes, seemingly successfully, but the resulting PDF has chunks missing from it.

The example Microsoft gives is a document with three sections in it but the PDF that you generate ends up containing Section 1 followed by Section 3.

You might have encountered this problem if you’re a FrameMaker user and assumed it was an Adobe issue. It wasn’t, it was a Windows issue.

Here's the hotfix:
http://support.microsoft.com/?id=952909