Ship date greater than cutoff date

When creating a counter sale on 7/21/08, we received the following
error message:


The following shipments could not be invoiced: Shipment 10185 - Ship
date is greater than the cut off date of 6/29/2008."

However, the only visible dates show "7/21/08". Has anyone else run
across this problem? We are on version 8.03.305K.