Gosh darn ding dang doo doo!
Now I've got the converter, I cleaned all the keys, everything is working - but now it seems to konk out after about 20 minutes.
Tried it on another computer - doesn't work. Unplug it for a few minutes, plug it back in and it works again.
Update:
I just plugged it in again and it didn't work at all.
Then, I started to get a ton of "J"'s and "O"'s. This actually makes me kind of happy as it would seem to suggest some kind of cross connection somewhere. Maybe the fix is as simple as a good cleaning?
Any advice?