I can't log in to the wordpress blog that I set up on my own domain (hosted on a 3rd-party server). My username and password don't work, and when I request a new password I get the error message "Sorry, that user does not seem to exist in our database. Perhaps you have the wrong username or e-mail address?"
This is a new blog, installed several weeks ago but not yet revealed to the world. Yesterday I upgraded to version 2.0.4, downloaded and installed a theme, added some images, and did some other set-up work before turning off my computer.
Today I could not log in. Username and password were saved on this computer, I had cookies set, and I have my "welcome" e-mail with the username and password, so I am reasonably sure I am using the correct username, e-mail address, and password.