You can never expect a Word document prepared on one computer to look the same when opened on a new computer. Look at both of these articles. I think you will find information you need to help you in the first one.

• What happens when I send my document to someone else? Will Word mess up my formatting?
• Why has my page layout changed when I open my document on a different machine?

Make sure that the option to update styles from the template is unchecked in any document you send out.