I received my two WWD's this past week. The paperwork included the "Read This First" sheet re swapping out the new and old drivers, and a single sheet printed on both sides re programming the drivers and marked as 3 and 4 on opposite sides. As noted in other post, there is nothing re error codes, but your response said there should be. Given this, am I missing pages from manual? I like to read all info on product, so would like to know what I'm missing if anything. Is full manual available online?