About two months ago I did a re-install of my OS, before which I saved my Google Earth Placemarker backups. Thing is, afterwards I couldn't get them to work so I carried on adding further placemarkers in the hope I would be able to add my previous lot at a later date. Problem now is, is that I can get one or the other sets of marker data to work in GE but not together. Is it possible to combine two sets of Placemark data into one? I need to combine the old with the new or will I have to manually add one set of data via the coordinates.