I am using Q2015 H&B. My problem: We'll say the invoice is for $375, and the customer pays $380; sometimes it will show the invoice with a "c" and the payment with a "c", and sometimes it won't, ie, one customer it shows both cleared, another one it doesn't. Other times, it won't show the invoice cleared at all. It is not consistent. Then, when I apply a credit for the $5, it changes my unpaid invoices total to $10 less, rather than $5 less, as if there were a $10 overpayment rather than $5.How do I carry over the credit to next years invoice, so it applies when I write the invoice, so the customer does not send it the full balance, and I have to carry the credit over again.