Ok, that means it has never been updated so there is no older driver to roll back to. If you go this site https://www.asusdriversdownload.com/asus-drivers/asus-x70e-notebook there are two different camera manufacturer drivers list for Windows Vista 32 bit. You can try install both, the one that does not match your camera will just error out during install and should not cause any issues. If this does not fix the problem I would suggest purchasing either a cheap USB camera to use or a new laptop (please go this route as Vista is no longer supported and severely vulnerable OS because of it).
Hi Chris, you have been a star!!! at least I know now the issue is with my laptop and not a Zoom issue.
YES, a new laptop is needed, I was sold a real duff!!! I'll try and do Zoom tonight on my mobile.
Thanks so much for your help, much appreciated : )