Thats 100% my fault. That treasure trail locater is a very shaky creation that uses the Live maps API (http://maps.live.com/). The technology has recieved multiple updates since I created that, and so it has frankly become very buggy (At times you might just see a blank chunk of the Atlantic Ocean

). It is in need of an update, I think that is clear... I'll try to find some time to create one but it is frankly a very tough job at first because of the size of the RS world map (caching or slicing would be needed - both very tedious tasks).