Problem printing SOP invoices from the batch entry screen.

We have a sales batch that was imported via Integration Manager (don't know if that's relevant or not).  The batch contains a number of sales invoices (anywhere from a few to a couple hundred).

When we print the entire batch from the 'Sales Batch Entry' screen, the occasional invoice will print incorrectly - line items that should appear on one page get split across multiple pages.  So, an invoice that has 20 line items ends up printing on 20 pages - each page with a single line item.  In other cases, the line items get split across multiple pages in a seeming random fashion (i.e., there may be 40 line items on one page, 10 line items on the next page, 1 line item on the next page, 4 line items on the next page, and so forth).  And, in other cases, the invoice prints all line items on a single page (like it should).

If I take one of the invoices that printed incorrectly, and then call up that document and print it by itself, then it prints as it should (i.e., all line items on a single page).

So, in short, the invoice prints differently if I print an entire batch as opposed to when I print an individual invoice.  This has happened with multiple batches across the past couple of months (since we started importing these invoices).  We can get the correct print-out by printing each invoice manually...but, that's not feasible given the number of invoices we're dealing with.

Anyone have any ideas why this might be happening?

Thanks.