Thank you all for your help - I have done yet another full reinstall from the disks, not the download link, and I can now get kits loaded. I’m still a bit puzzled by the way this is handled in GA4. The blurb says there are 104 kits, 101 electronic and the three acoustic ones, but which kit you get in the electronic category is based upon ‘style’ rather choosing a specific kit. I suppose I will get used to it.
But now I have come across another rather puzzling issue and I shall post another thread about that. It’s MIDI related.