Thanks for the response.
Yes I did select the Local Disks icon, did not select Removable Media nor Folder Selection. Let the scan run right through to its completion. Did this a couple of times to be sure I was doing it correctly. But still no joy, no 'Date of Last Scan' or 'Virus recovery database'. A virus was detected during the first scan, so the detection part is functioning at least.
Any further ideas?
Thanks, appreciate your efforts.