Invoice Printing - retain line order, as input

SOLVED

I have a problem with the lines of my invoices printing in a different order to the order they were input.  For example, I'll list the items and price per item and then add a line at the end for the delivery charge.  When I print the invoice the lines are mixed up.  There doesn't see mto be any logic to the order Sage is printing in (i.e. they are not alphabetical or by value).  Also, just to further confuse matters, sometimes (but not always) if I re-print the invoice they appear in the correct order (i.e. in the order they were input).

I need advice on how to set up the invoice in Report Designer for the lines to stay in the order they were input.

Any help would be massively appreciated - this drives me crazy!

Thanks