[GPS-John]

I am having trouble with automatic paragraph numbering in Word 2007.

What I want is:

3. Heading 1
3.1 Heading 2
3.1.1 Heading 3

What is happening is that it is getting out of sync and what I get is
something like
3 Heading 1
3.1 Heading 2
3.6.2 Heading 3

What am I doing wrong?

Thanks in advance to anyone who can help

John