Using Word 97 (sorry!)

My data source includes several rows per one record (ie like an invoice
which would contain several items per one customer).

I am trying to create a document that puts all the rows for one customer on
each page (ie starts a new page for each customer). However the document
doesn't know when to "end" the rows for that customer so the rows for the
next customer are included on the page with the previous customer.

I am trying a "NEXT Record if" statement along the lines of:

{NExtIF {Mergefield Customer_nr} = {mergefield Box_no} {Mergefield Pub_name}
?????
I am thinking that I either need to enter an instruction to start a new page
^m (?) or is there a "distinct" instruction that I could use?