Going through lesson 1.  I have copied the DiscountRate field over from the CustomerF to OrderF as you did in your example.  I set the default value as you did also.  However, the discount rate only carries over for some of the customers, but not all.  When clicking on You 40%, Ronald Simms 40% or Alan Watson 7% the discount rate is not carrying over to the OrderF.  It is for all the others.  I even deleted the fields, compacted/repaired closed and reopened, copied back over and still does not work.