When I have installed the new version, I can not find the option that users can click on when the want to have a e-mail notification when someone answering his post.
The user needs to add the thread into their favorite threads. Then in their profile there is an option to send an email whenever someone replies to one of their favorite threads.
You may wish to copy/paste this post to your forum to help teach your users how it works. <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" />
