I am really grateful for the suggestions for alternatives and have installed the Sage extension for Firefox which does the job very well. However, I need to learn! I'm good with Windows and I want to be good with Fedora. So what I really need is to understand the results I got from following up Nicola Losito's suggestion that I posted earlier. Help with this would be very much appreciated. I look forward to the day when I can answer questions as well as ask them. Ollie K
