I know that my eBay ID and password are correct. Might it be because I am already logged on to eBay ? .. but I have to be to get the page I want, at least so I thought.

Your password might be refused when it's too weak (it's a dictionary word, contains your user id or just a few digits).
You have to make your password stronger. For example, if you have a dictionary word, then adding a few digits will do.

If you still having login problems, please send your user id using contact form for further investigation:
http://www.myibay.com/login/contact

Yes, that was it -- thank you !!! MF