[cgagan]

I don't know if this will lead to a possible solution: I reloaded the map and got the message "bad water, map rid". This was also a problem with Waggel's excellent NorthSea map, which he has tackled, according to his latest post. If you map making geniouses are in touch, perhaps you could ask him for a clue concerning the "maprid" thing? I shall also post this request at his thread, many thanks,