I wasn't aware that there was a jumper setting like that, though it wouldn't surprise me if there was. The drive was screwed into the case and when I switched it from master to slave I started playing the "let's switch the jumpers until it works" game
I guess I'll have to go back and research that. I'm surprised that the system would continue to say yeah we're deleting, we're low level formatting, no problems here without throwing up any sort of write errors...