Hi (Dick?),
After highlighting some text, pointing on the text and clicking it will bring up the highlight options bar again. On that bar, there is a little circle with a bar across it, which is used to remove the highlight. Look for it and let us know if you are successful. It does look like one has to remove highlights one at a time, although that might not be the way it is. (Gotta look a bit more on that).
Brian - Sent from my iPad using iPF