Forum Post: Invoice Numbering

I am trying to set up separate invoice numbering for each client (so the client's first bill is 1, then 2, etc.), versus a global invoice number that keeps increasing for all client bills. I have gone to the Client Information Invoice page and typed in and saved for each client the Next Invoice Number that I want to use, but when I print bills they still come out with the next Global Invoice Number. Can anyone please help.