I and another list member (whose user ID unfortunately escapes me) were discussing in a PM the 900B that I have and no longer need (because I found the later one correct for my 3996). I got as far as gathering up and packing the parts, then something must have come up and I forgot about it for a while. Yesterday, I stumbled across the box but cannot find the Conversation thread. If you are still on here and recognize yourself, please contact me via PM. Even if you've already done something else.