When I create a new map in CraftBukkit1.4.2-R0.1 #2421 there's a little bug. The arrow that represent our character is flashing to the color of the rainbow. Sometimes, it create a blue square. Also, I think that the map is zoomed, because in single player, we can see a lot of the region, but in craftbukkit 1.4.2-R0.1 #2421 we can only see 100x100 blocks. We can easy reproduce this bug by creating a new map. Sorry for my english, I'm canadian.