Thanks Dukky - partially successful. Still getting the message when trying to initiate scan directly from the all in one device ( ie: scan to word etc ) but able to scan from the HP solution centre. During the install, at the point it asked to connect the USB and ensure the device was powered on, it never recognised the device as being connected - just hung there until I selected " connect the device later " option. Perhaps some erudite chap will have more suggestions. Thank you for your help Duk.