[mkgmap-dev] Problem for routing with different zoom levels

Not sure if anyone has spotted this before, as I have not been keeping a close eye on the mailing list lately. I had the following defined in my style file; to show thinner lines for primary highways at different zoom levels: highway=primary [0x1b road_class=2 road_speed=1 level 3-4 continue] highway=primary [0x03 road_class=2 road_speed=1 level 2] This seems to have broken routing in Mapsource and on the device. I removed the first line and changed the level on the second to 3 and it worked fine (I assume 4 would have worked fine as well). Is there a restriction on doing this type of thing regarding routing? Geoff.