JUST AN UPDATE ................
I could not get my previous ProTrainer / SIGNTRAINER ID to work , so I had to create a new account.
Anyway .... I still use the driver mentioned in the first post, and it works just fine.
Every so often, I have to turn off the power on the cutter(s) and turn back on to get the newest file to cut, but not too often, and certainly a better option than any OTHER one I have found.
Richard / SignTrainer.com