Hi, I'm using dlookup to sort out my customer discounts and its been working great so thank you for teaching me.  one thing that has just come up though is, I gave a 100% discount on an order and the order total box came back with nothing in it, it was just blank.  I thought I'd broken something so added a shipping fee and it then returned a number but when I deleted the shipping so the order went back to its 100% discount state, again there was just an empty box.  any suggestions would be greatly appreciated.  thank you guys :)