This has been an issue on my site for years. Drives me up the wall and I can't figure it out. The title of the following page has a "dash" in the middle of it. When the post is displayed, though, it looks like an underscore.
http://www.pmkelly.com/2010/08/facebook-share-button-count/
That same kind of "dash", however, looks fine in the title for this other post:
http://www.pmkelly.com/2010/07/wordpress-to-facebook/
Does anyone have any clue what is going on here? If I copy/paste from these displayed titles into another window, one looks longer than the other. But they're the same character inside the WordPress editor.
Thoughts? Ideas? Clues?
Totally stumped.