My customer did not pay a deposit.  All they did was accept the estimate.  When they did, QB created an invoice with the amount due.  For previous estimates this did not happen, the estimate status was just changed to "accepted" which is what I would expect.  I'm not sure why it decided to automatically create an invoice this time.  It can't be random, there must be a setting somewhere I changed to make it do this.  Any ideas how to undo it?