Yes, I noticed that. Thanks for the tip.

I find it doesn't work at all on ipernity. (It does on my old Windows 7 computer but not with my new one with Windows 10 - no sound either but that's a differentg story!)
Should I try and do the same?

Better late than never... So, I guess you should get the spellcheck up and running also with the right browser settings: knowledgebase.practicefusion.com/knowledgebase/articles/580137-how-do-i-enable-spell-check-in-my-browser

I hope this helps you to get it running on the browser you are using.