InfoPath Dev

I have a form with a repeating section and in that repeating section is a repetaing table for child records.

 The form is used to create new records only.

The child repeating table automatically creates a new row when the form is opened, is there a way of starting the table with no rows?

The form's Default Values dialog should allow you to do this.

You're quite right, thank you very much.

 I went to the Data tab, selected Default Values and then selected the group and the option 'Exclude this group in the initial form'