Missing topics in printed documentation

I am using RoboHelp V7 and WebHelp as my Primary Layout. My project has approximately 100 topics.

The project is basically an A-Z with various topics saved into 26 folders (A-Z). The printed documentation prints perfectly except that the H1 headings for all the 'A' topics are missing from the resulting Word document.

The table of contents in the Word document is correct, with "A" listed but none of the topics are listed in the TOC. The topics appear in their correction location in the word document except the H1 headings is missing. The heading "A" appears in the correct location in the Word document.

In each topic the H1 is in the header and draws its text from the name of the topic.

All the 'A' topics were created manually and the rest 'B-Z' were imported from an Word Document. This appears to be the only difference between the topics!!

All the topics (A-Z) are connected to the same template and access the same CSS file.

On the final screen of the Print Documentation Wizard (Print Document Appearance - Pninted Documentation) I have tried connecting to different templates from the drop down list under MS Word Template. I have also created my own *.dot file out of a resulting document (i.e. stripping all the text and saving as *.dot). But no luck.

Any thoughts?

Many thanks in anticipation.