Finally, I got it. It's not a rendering issue but huge polygon showing the German Yahoo hi-res imagery : http://www.openstreetmap.org/browse/way/44173524
linked with other similar boxes by a multipolygon relation named "Germany" as outers: http://www.openstreetmap.org/browse/relation/371423 I will change the relation and add a note. Pieren _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk