Hi,
Thanks for the response. I turned off the plugin and the old admin comments are now showing as ‘admin’ instead of ‘guest.’ Seems like it’s still linking these comments to the old admin (?). But I’m okay with this since ‘admin’ is better than ‘guest.’ And even though there is no longer a gravatar associated with these comments, that’s okay too. Since I am not comfortable making any changes to the database I will have to live with what I have. Thanks again!