that's interesting. The keysoft system updates not only the file allocation tables but also the custom scripting lists and alpha lists etc after every update operation from the pc. This means you can go directly to the keyboard with the latest changes updated. This is one advantage, but the disadvantage is the backup and restore is slower than just copying. There is an alternative usb connection but it looks as if this may never get implemented now. I wonder if the problem is similar to the pa80?