[pbkry2r]

I have a movable dot under a letter in a manuscript I'm editing and I can't
figure out what it's for or how to delete it. It's under a does-not-equal
sign, and when I delete the sign and replace it with a new one, the dot moves
to another letter. When I delete the letters and retype them, the dot
returns to its original spot. I'm not talking about the dots that appear
between letters when you click the show/hide formatting key. I'm not
tracking changes or adding comments in this document, but I am using
bookmarks. Could the bookmark be leaving this dot?

Windows XP Pro, Word 2007, all with current service packs.