That really helps! I particularly like the links to the backing-up process. I am beginning to feel a little more confident with Ubuntu 9.10 in fact I haven't been back to Vista for a few days now. However, I am still a little wary of entering the "terminal" at the moment - but I will soon.
Many years ago I used a Unix dedicated system within the "pre-press" industry and found it the best system we ever had! But that was a while back and the whole system was devoted to pre-press, so I am not too daunted by codes and commands. But of course, I have never used them within a operating system/pc environment.
Thanks for your help