Have you compared the options selected for the send mail script step in the starter solution to those selected for your script to see if any differences in what options were selected?
Yes that was my first stop
When looking at the starter solution in layout mode and reviewing the button setup it says "do nothing" but it actually does something
"Do nothing" would indicate that you are looking at button setup for the wrong object on your layout. Some of the starter solutions get cute with invisible buttons combined with graphic objects that look like the button but aren't. It's possible that you are looking at button setup for the graphic object instead of the button.
But you don't really need to look at button setup if you can open Manage | Scripts and spot the script for sending out email.
Thank you very much. I was looking at the wrong object in the layout "problem solved"
Thanks for the help
Hope you have a good new year