Many thanks for your help. I've done as suggested. Results are:
1. In "single image" mode, the first image is now displayed in the slide show, but its title still doesn't appear in the single icon cell.
2. All the text is now aligned centrally and looks much better, but the actual thumb nails are still left aligned.
3. I've attached a snapshot of a slide show image. Basically I don't like white lettering on a grey back ground doesn't "stand out". Is there a way to have black lettering on a white background?
4. Slide show images are still being cropped on the right hand side even when I reduce all images to a max width of 960 pixels. Its difficult to be certain but slide show images don't appear to change after manualy adjustment of their original widths. I've carried out "Site Maintenance, Clear Cache" and "Purge Expired Cache".
Its currently difficult to demonstrate to you, as (until I'm happy with the results) I'm testing under XAMPP.
But - many thanks.