Having a problem with the "Enforce Referential Integrity". I have followed the video (starting at the 11:30 mark) to the end. I have done this several times and I keep coming up with the same result, it allows me to add line items in the "OrderDetailF" with out giving a warning that I can not do this. It will also not give a warning directly in the "OrderDetailT". I have even looked at the HandBook for this lesson and it still comes up the same. What is wrong? one other piece of info I am running Access 2010 not 2013.