Gravatar problems

I cannot get my gravatars to link properly to my blog. I have a blog that I manage for a client (with a separate email address) that for some reason has attached itself to my personal blog. I have made sure that all email addresses associated with my personal blog have their own gravatar account with profile pictures and it still doesn’t work. The only way I have a picture where it says “howdy” next to my blog is because I added a pic on my clients blog as a test. And there is no way to get to the gravatar from the comment box or the user box because it no longer hovers. I did not discontinue the hover, but I followed the steps to restore it (deleting cookies) and nothing. HELP!