Hi Jacob, MoI uses some driver infrastructure that was added at some point after some of those oldest devices were introduced, so some of them don't implement the interfaces that MoI actually uses to talk to the device.

But it may be possible for you to manually install the newer device interface layer, please see this previous message:
http://moi3d.com/forum/index.php?webtag=MOI&msg=816.5

- Michael