I have come across a couple of other issues that are related to the price formatting, so I am adding them to this post.
There must be separate CSS code selectors for the two prices I am now seeing, although using the Chrome browser developer toolbar, they both (to me anyways) look to be the same – I must be doing something wrong. Please have a look at the attached picture to see what I am looking at:

Secondly, on the product gallery page, I would prefer to, again, remove the price range and replace it with "Starting at " followed by the lower amount in the price range. For example, the item below would have “Starting at $49.00”.

Many thanks again for your help.