diff --git a/src/com/dre/dungeonsxl/DPlayer.java b/src/com/dre/dungeonsxl/DPlayer.java
index 7e18b063..a86a4d6e 100644
--- a/src/com/dre/dungeonsxl/DPlayer.java
+++ b/src/com/dre/dungeonsxl/DPlayer.java
@@ -466,9 +466,11 @@ public class DPlayer {
 					
 					//Check Distance Trigger Signs
 					for(DSign sign : gworld.dSigns){
-						if(sign.isDistanceTrigger()){
-							if(dplayer.player.getLocation().distance(sign.getSign().getLocation()) < sign.getDtDistance()){
-								sign.onTrigger();
+						if(sign != null){
+							if(sign.isDistanceTrigger()){
+								if(dplayer.player.getLocation().distance(sign.getSign().getLocation()) < sign.getDtDistance()){
+									sign.onTrigger();
+								}
 							}
 						}
 					}
diff --git a/src/com/dre/dungeonsxl/P.java b/src/com/dre/dungeonsxl/P.java
index 4359e592..526f3cc5 100644
--- a/src/com/dre/dungeonsxl/P.java
+++ b/src/com/dre/dungeonsxl/P.java
@@ -37,6 +37,7 @@ import com.dre.dungeonsxl.listener.EntityListener;
 import com.dre.dungeonsxl.listener.HangingListener;
 import com.dre.dungeonsxl.listener.PlayerListener;
 import com.dre.dungeonsxl.listener.WorldListener;
+import com.dre.dungeonsxl.util.DUtility;
 
 public class P extends JavaPlugin{
 	public static P p;
@@ -63,7 +64,9 @@ public class P extends JavaPlugin{
 	@Override
 	public void onEnable(){
 		p = this;
-
+		
+		DUtility.convertOldSigns();
+		
 		//Commands
 		getCommand("dungeonsxl").setExecutor(new CommandListener());
 		
diff --git a/src/com/dre/dungeonsxl/game/GameWorld.java b/src/com/dre/dungeonsxl/game/GameWorld.java
index 98077ea4..47e5c89c 100644
--- a/src/com/dre/dungeonsxl/game/GameWorld.java
+++ b/src/com/dre/dungeonsxl/game/GameWorld.java
@@ -84,8 +84,10 @@ public class GameWorld {
 		this.isPlaying=true;
 
 		for(DSign dSign : this.dSigns){
-			if(!dSign.isOnDungeonInit()){
-				dSign.onInit();
+			if(dSign != null){
+				if(!dSign.isOnDungeonInit()){
+					dSign.onInit();
+				}
 			}
 		}
 	}
diff --git a/src/com/dre/dungeonsxl/util/DUtility.java b/src/com/dre/dungeonsxl/util/DUtility.java
new file mode 100644
index 00000000..7faf7ac6
--- /dev/null
+++ b/src/com/dre/dungeonsxl/util/DUtility.java
@@ -0,0 +1,84 @@
+package com.dre.dungeonsxl.util;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+
+import org.bukkit.World;
+import org.bukkit.WorldCreator;
+import org.bukkit.block.Block;
+import org.bukkit.block.Sign;
+
+import com.dre.dungeonsxl.P;
+
+public class DUtility {
+	public static P p = P.p;
+	
+	public static void convertOldSigns(){
+		File file=new File(p.getDataFolder(),"/dungeons/");
+		
+		if(file.exists()){
+			for(File dungeonFolder : file.listFiles()){
+				if(dungeonFolder.isDirectory()){
+					p.copyDirectory(dungeonFolder, new File("DXL_TMP"));
+					
+					World world = p.getServer().createWorld(WorldCreator.name("DXL_TMP"));
+					
+					//World
+					try {
+						ObjectInputStream os=new ObjectInputStream(new FileInputStream(new File(p.getDataFolder(),"/dungeons/"+dungeonFolder.getName()+"/DXLData.data")));
+						int length=os.readInt();
+						for(int i=0; i<length; i++){
+							int x=os.readInt();
+							int y=os.readInt();
+							int z=os.readInt();
+							Block block = world.getBlockAt(x, y, z);
+							
+							if(block.getState() instanceof Sign){
+								Sign sign = (Sign) block.getState();
+								
+								if(sign.getLine(0).equalsIgnoreCase("[dxl]")){
+									sign.setLine(0, "["+sign.getLine(1)+"]");
+									sign.setLine(1, sign.getLine(2));
+									sign.setLine(2, sign.getLine(3));
+									sign.update();
+									
+									if(sign.getLine(0).equalsIgnoreCase("[mob]")){
+										String[] splitted = sign.getLine(2).split(",");
+										if(splitted.length >= 3){
+											sign.setLine(2, splitted[0] + "," + splitted[1]);
+											sign.setLine(3, "D "+splitted[2]);
+										}
+									}
+									
+									if(sign.getLine(0).equalsIgnoreCase("[msg]") || sign.getLine(0).equalsIgnoreCase("[soundmsg]")){
+										sign.setLine(3, "D "+sign.getLine(2));
+										sign.setLine(2, "");
+									}
+									
+									if(sign.getLine(0).equalsIgnoreCase("[checkpoint]")){
+										sign.setLine(3, "D "+sign.getLine(1));
+										sign.setLine(1, "");
+									}
+									
+									sign.update();
+								}
+							}
+						}
+						
+						os.close();
+						p.getServer().unloadWorld(world, true);
+						p.copyDirectory(new File("DXL_TMP"), dungeonFolder);
+						p.removeDirectory(new File("DXL_TMP"));
+					} catch (FileNotFoundException e) {
+						e.printStackTrace();
+					} catch (IOException e) {
+						e.printStackTrace();
+					}
+				}
+			}
+		}
+	}
+}