My form populates a couple of drop-down list boxes from a SQL Server
connection.  The problem is that Infopath adds a blank entry.  Now this would
make sense if the default value is not specified.  But when specifying a
default value, the blank line is still there when clicking on the drop-down
box.  

Is it possible to prevent that blank line from appearing as a possible
selection?  I know I can use data validation, etc to annoy the user not to
select it, but it would be much smoother to nip it in the bud.  Thanks.