Chad,
I was causing my own problem. The users of the system wanted to insert line in the middle of the list, as QuickBooks allows. Since Method only allows adding lines to the end of the list, I tried adding a sort column to the grid (n both the Estimate and Sales Order screens). This works well enough for ordering the line items, but now I see the Disount and Subtotal line items depend on the original order of the lines. (I guess I will be removing the sort column and force the users to delete and reenter items if they must correct the order of entry.)
So I find the Discount line item calculates the correct percentage from the line item above, except for the Subtotal line item, which has a value in the Rate column, but not in the Total column. In QuickBooks we use the Subtotal line item to apply a discount to a group of items. Is there any way you could get the Discount line Item to work on the Subtotal line item also?
~V