Yes, that's it. Output buffering is set up in my php.ini.
I didn't read the earlier post that way. I was only thinking about me setting it up in my code if I wanted to. That didn't make me think that maybe it was already set up that way.
And I have been viewing source code all day. I just wasn't sure about why it had to be at the top, or if seeing it there in the running code was good enough. Not sure how to tell if it's working either - whatever it does :>)
This session project is to log in users and display their name at the top of the pages - pretty typical. But now I guess I have to go through every page on the site and start a session as the first thing. Unless anybody has any better ideas?