Terry Hewitt wrote: > Let me know if you need anything else. Failing any other ideas, all I can suggest is that you try "jiggling" it: Select the driver in device manager and remove it, ticking the "delete driver" box. Unplug the device Plug it in again Install the Argyll USB driver again Unplug the device Restart the system Plug the device in again. See if it works. etc. Graeme Gill.