Проверь server.properties. И не капси!
посмотрел server.properties, все нормально. и еще когда клиент его открываю пишет ошибку, для большей информации говорит просмотреть лог FML
в логе написано
2013-10-08 19:36:38 [INFO] [STDERR] Exception in thread "Thread-2" java.lang.RuntimeException: java.lang.RuntimeException: A fatal error occured and FML cannot continue
2013-10-08 19:36:38 [INFO] [STDERR]at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:192)
2013-10-08 19:36:38 [INFO] [STDERR]at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:259)
2013-10-08 19:36:38 [INFO] [STDERR]at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:229)
2013-10-08 19:36:38 [INFO] [STDERR]at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
2013-10-08 19:36:38 [INFO] [STDERR]at net.minecraft.Launcher.replace(Launcher.java:153)
2013-10-08 19:36:38 [INFO] [STDERR]at net.minecraft.Launcher$1.run(Launcher.java:94)
2013-10-08 19:36:38 [INFO] [STDERR] Caused by: java.lang.RuntimeException: A fatal error occured and FML cannot continue
2013-10-08 19:36:38 [INFO] [STDERR]at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:261)
2013-10-08 19:36:38 [INFO] [STDERR]at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)
2013-10-08 19:36:38 [INFO] [STDERR]... 5 more
что делать?