VAT Rounding

Hi I have the following problem regarding Navision 3.60 W1 : I create a number of sales lines. After relasing the order line look like this Ex : QTY Unit Price Line Amount Amount Incl VAT 1 12,33 12,33 15,42 1 12,33 12,33 15,41 The total amount incl VAT is 30,83. I understand that navision has to adjust one of the sales line in order to get the lines to fit with the Total amount incl. VAT. My question is : Is it possible to control which line should be adjustet ? Regards Jens