Thanks for the replies but it’s become more complicate. For many years I’ve been running W/L in a WeatherLink folder in DropBox. This has worked very well and, of course, safeguards the data. However, if I install W/L on the C: drive of the computer it works. Why it no longer runs in DropBox is currently a mystery but I shan’t be looking into that until tomorrow.
Anyway, thanks again for your replies and I’ll be closing this topic.