We have tested a Tornado spinner in DOS and did have it working 100% but in your case and a few others who still use DOS for there arcade operating system, there have been instances of failure or non DOS compatibility.
Well, I tried it on two separate motherboards with two separate versions of DOS on each (DOS 7.0 and FreeDOS), and just about every DOS mouse driver under the sun, including 3 versions of CuteMouse (your recommended driver), and had the same basic problem each time. I asked on your messageboard (once) and via email (twice) which version of CuteMouse you recommended, but never had that question answered.
We sent you an email and offered you a full refund but no reply was sent.
That's true. Like I said, I like how your spinner mechanically works (that thing must defy some law of physics, as it spins seemingly forever), but don't like your encoder board, so instead I opted to get an Oscar Controls encoder board and mouse hack and pass your optics along to a Windows user. In between the time I sent my last plea for help and your offer of a refund, I was able to order the encoder board, have it shipped to me, and install it.
Oh well. It doesn't matter anymore, as I now have a spinner that spins great and works in DOS... it just required a little outside help.