Nevermind, it now works.
I've got a Yahoo!Mail Beta account. I changed my password, then tried to sign in a couple of times, which did not work. Later I realized the new password only works after a certain amount of time. However, since I tried signing in so much, the account got temporarily closed. But even after it opened again, I tried the new password, or getting a new one by answering the "secret question", which didn't work either! Anyone know what to do about this? Or how to contact Yahoo directly?