No send button for zoom chat
I was using zoom quite happily until I updated Windows a while ago. Now, frustratingly, I can only hear what people say, but have to use headphones, because there's feedback otherwise, but they can't hear me. When I troubleshoot, I am informed that my microphone isn't recognised, or is being used by another app, which I can't identify. My laptop choice offered in audio settings is microphone or computer, it doesn't allow both. I have also tried uninstalling, turning lap top off and then switching on and reinstalling and turning laptop off and on again.
So, I am now trying to use chat to contribute to a meeting. But no send button!!
1. Can you tell me how to send chat?
2. Is there a way of being heard?
3. Can I download zoom to my tablet (6 month old Samsung). The only hesitation that I have with that is that a warning came up when I contemplated that, that downloading zoom may damage the tablet.
I am a frequent but very basic IT user.
Thanks for advice in advance.