I've just started using a new version of Word - Word 2019 - and I can't get the spell check to work properly.

I'm used to words spelt wrongly having a line underneath them in the document, so I can immediately spot them and correct them. That's not happening. And if I go to "Tools", then "Language" and untick the box which says "Do not check spelling or grammar" it still doesn't work!

I can go to "Review" and click on "spelling and grammar" there but that's really plonky because it goes back to the top of the document when I might be working much further down it. Why aren't mis-spelt words just highlighted any more and what can I do about it?