Apparently, you don't understand the problem. No matter what number you put in as a new invoice number, it SAYS its already been used. SO, to remedy the problem WE have to switch back to the old layout. The new layout WILL NOT LET US PUT IN A NEW INVOICE NUMBER. already submitted the issue to your "team". This is going to be a problem on Dec 11th when we will not be able to switch back to the old layout. Just like what happened Y2K. Good luck with that.