HUSQVARNA VIKING Sewing & Embroidery Machines

viking4dHusqvarna Viking Desner Diamond Update. This update is available to all registered HUSQVARNA VIKING® DESNER DIAMOND™ sewing and embroidery machine owners.I have a Husqvarna Viking readerwriter to transfer embroidery desns to a card that goes into my embroidery sewing machine. It has worked well until recently but now it is not recognized and