I'm logged in, but get stuck in a verify my password loop when I try to email a blog post from Yahoo home page?

I've verified that I'm entering the correct password, entering it correctly, entering on a screen where my security seal is posted, and the url begins with https://login.yahoo.com. It's an endless loop. What's up? This isn't the first time I've had this issue, but I'm usually able to enter eventually. Today, it's never-ending. Any ideas? The only other post I've seen with the exact same situation is from one year ago and it was a temporary bug from server updates.