I have the same problem as Rizlaw, but none of these tips are helping me. I have a self-hosted blog. I activated Akismet, but I need an API key. I went to wordpress.com, made an account. The email sent to me only has a password, not an API key. I logged into wordpress.com, checked out my profile page there, and nothing. Went back to my admin page on my own blog, and nothing.
Has this happened to anyone else?
