My b2evolution Version: Not Entered

Currently, if I want to put a "Read more" break in my blog I get a link that says "Read more." Perfect!

But on the second page (after you click the link) I get the words "Follow up:" in the middle of my post.

I understand why it's there -- to tell the reader where the new information begins. However, I'm afraid it will confuse more people than help. On other sites, I've seen that text phrased differently or in a different color.

So how do I change it? Is it a function of my skin? I've looked in various PHP files and my CSS, but can't find it.

Here's an example page:
http://mikeboas.com/index.php/2008/06/21/mad-dog-spores