Are you using Gmail notifier? A must-have tool for Gmail users, it will configure it for you.

That would be good if it worked for me. I did install it, but it works only with a secondary gmail address I have for the basic version of Gmail. However, I subscribe to an advanced version of Gmail which gives me a domain name as part of my email address (and in which Gmail in not even mentioned) and this is where I get practically all my mail and send all of my mail.
So, I am back to the question of how to change the default mail client used by MSword to my domain name Gmail.
Thanks for responding. I appreciate your interest.

Cheers,

Warren Cassell