Sorry, because I'm quite sure this is quite simple, but darned if I can find any information on how to handle it.
All I want to do is arrange it so that "DoList" is preselected in the browser:
No, do not display my name <input type="radio" name="OK_to_List_Name" value="DoNotList"><br>
Yes, OK to display my name <input type="radio" name="OK_to_List_Name" value="DoList"><br>
I'm sure it's obvious... but not me to, unfortunately...
Thanks for your time.