Good morning arochester & Ram,
Thank you for such fast replies.
Thanks very much for taking the time to supply those links. I've clicked on the first two of those links. Yes, a new tab opens displaying the relevant Full Circle web page. Sadly, when I click on the main picture, nothing happens. Yes, the small throbber appears on the browser tab, for about half a second. then nothing. The throbber is then replaced by the broken outline of a small square. I don't know if that means anything particular. I tried right clicking on the picture but wasn't sure what to select from the pop up menu. Am I doing something wrong or is the web page somehow "broken" ?
Thanks very much for the suggestion. I've just had a look at that on disc. Whilst it does have example programs within a chapter, sadly it doesn't have end-of-chapter exercise questions and so no answers to those questions in the appendix. It may be a good book but it doesn't quite suit my learning-by-doing frame of mind.
Once again, thank you both for taking the time to respond. It is very much appreciated.