Paul – I just wanted to thank you for taking the time and solving my problem – I removed the customisation that I’d done to the functions.php file to allow an email login (I think I did this before WordPress allowed such a thing – or maybe I was mistaken) and now the widget works. There was obviously some conflict.
Thank you so much – it’s quite hard work pushing our users (older people) to do things online, so really need it to be as simple and user friendly as possible.