Just to say I've been tweaking a bit, including taking on board some suggestions here - also the titles of the documents (that appear in the browser with each page) completely missed my radar in my enthusiasm to get the site up, so looked very messy, now sorted. I know I lost some pages this morning when I was editing, sorry if anyone was looking at the time, that shouldn't happen again. I've changed the settings and checked 20 times! fingers crossed anyway.
If any persistant problem SHOULD occur & you notice it (shouldn't happen, but...) I'd be very grateful if you could let me know. Thank you.