HI, i'm using the latest bukkit build I just downlaoded it to check its not broke because i'm out of date etc.. I jsut can get the mob spawner to spawn mobs I set one to cow, one to pig, and a chicken one. This is my server properties Code: #Minecraft server properties #Sun Jan 06 12:36:48 CET 2013 generator-settings= allow-nether=false level-name=world enable-query=true allow-flight=false rcon.password=mvez7dbxsky server-port=25565 query.port=30000 level-type=DEFAULT enable-rcon=true level-seed= server-ip=188.165.232.156 max-build-height=256 spawn-npcs=true white-list=false debug=false spawn-animals=true snooper-enabled=true hardcore=false texture-pack= online-mode=false pvp=true difficulty=2 gamemode=0 max-players=300 rcon.port=28000 spawn-monsters=true view-distance=5 generate-structures=true spawn-protection=16 motd=\u00A71Epic-PvP\u00A74 \u00BB\u00BB\u00A71 Factions + HG \u00A74 \u00BB\u00BB \u00A71Offline Mode \u00A74\u00AB\u00AB \u00A71www.Epic-PvP.com\! And this is a screenshot of my plugins, note world guard is set to spawn animals and not block any have checked that!