OK, Jon, you win, it’s not your fault, you needn’t buy a new computer as I suggested in my email.😂
It seems to be happening each time a new page is created, ie Pages 2 & 3. I’ve just gone into the heading and removed the rubbish from Page 3. It should be OK now until Page 4 appears (I hope). I’ll keep an eye on it going forward.
Thanks Chrise for sticking up for Jon, it’s always nice to have friends you can rely on🥰👍