I am using Sage Timeslips Premium - Build 30.0.5.96. Under General Setting, Transactions: Bills, I have the setting "Show Invoice Number on Bills with New Charges selected but the invoices with just a previous balance or payment received that have no new charges on them are still showing an invoice number. This is confusing to our clients. We've had numerous calls from clients asking us to stop putting invoice numbers on invoices with no new charges on them, as they end up sending duplicate payments as a result. Please advise how to fix this glitch. Is there a patch of some sort? Is see that others have had the same issue.