Someone on here went to the trouble of writing a superb, step-by-step guide on how to up-date Amundsen maps. It was ideal for the terminally non-techy, like wot I are, so I bookmarked it for future use.  Now I want to do an update but, following a computer problem, a lot of my bookmarks have disappeared, inevitably this one amongst them.  I have searched the forum endlessly but cannot find this particular post which, if I recall correctly, was part of a long thread on the subject. Hope