I'm a little confused as to where you are seeing that text. Is it actually in a comment from a user or stream post (in the Fan box) or somewhere else? The contents of the comments or Fan box are not something we have direct control of. That content is loaded directly from Facebook and is not stored in your database locally. If you're seeing issues with the content, I'm not sure if we can do much.
For us to investigate further though, please let us know a URL where we can see the issue. We'll gladly let you know what we find.
Thanks,
Alex