Bear in mind that the password should be for the SQL account. That may not (and really should not) be the same as your host’s dashboard password.
I didn’t think they were the same, either. All along, my ftp client used a different password than that of my SQL account. When things went bonkers yesterday, I thought I had unwittingly screwed something up. So that’s when I began playing with the passwords, hoping to land on the right one.
HOWEVER… a friend pointed out earlier today that the whole problem might be caused by the hosting company. And, sure enough, within the last 10 minutes, the whole problem disappeared and everything seems to be back to normal. (I’ve logged in successfully three times while composing this post.)
Having read last Friday that WordPress 3.2 was about to be released, I asked my hosting company if their SQL and php apps met the requirements for WordPress 3.2 and their answer was very vague. Now I know why.
Thank you all for trying to help me. I appreciate it very much. I’m so sorry that – due to my lame hosting company – your time was wasted.