Posts appearing within comments

Twice now, after adding a new post to a specific category, a previous post ends up as a comment in the post I just submitted.

Anyone seen this? This is a new install of 2.7 and I’m new to wordpress so there are only 8 posts total in the whole site.

The only tweak I’ve used on the site so far is that I added the php code to disallow this category to show up on the home page. Other than that, the code is untouched.

I’m afraid to delete the comment for fear that it will remove it as a post too.