>>I have always responded to them, never initiated one. Can't find the button.
>
>There are several ways to send a private message:
>
>1. From the top toolbar, using the private message icon. This will allow you to obtain a private message form where you will be able to select the member.
>2. When reading a message, you can click on the private message icon, in the user profile, and this will give you the private message form already selected for the member.
>3. From the list of members online, where you can access that as well with a single click.

You don't necessary have buttons from 1 & 3.

Is Member Search available for all members? If yes, that's one more way.