diff --git a/src/main/java/cpw/mods/fml/client/FMLClientHandler.java b/src/main/java/cpw/mods/fml/client/FMLClientHandler.java
index b87bc7e..8973317 100644
--- a/src/main/java/cpw/mods/fml/client/FMLClientHandler.java
+++ b/src/main/java/cpw/mods/fml/client/FMLClientHandler.java
@@ -58,6 +58,7 @@
 import net.minecraft.network.ServerStatusResponse;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.StringUtils;
 import net.minecraft.world.WorldSettings;
 import net.minecraft.world.storage.SaveFormatOld;
 
@@ -1010,4 +1011,10 @@
 		Display.processMessages();
 		SplashProgress.mutex.release();
 	}
+
+	@Override
+	public String stripSpecialChars(String message)
+	{
+		return StringUtils.stripControlCodes(message);
+	}
 }
\ No newline at end of file
diff --git a/src/main/java/cpw/mods/fml/common/FMLCommonHandler.java b/src/main/java/cpw/mods/fml/common/FMLCommonHandler.java
index c5f5cce..3f37cc8 100644
--- a/src/main/java/cpw/mods/fml/common/FMLCommonHandler.java
+++ b/src/main/java/cpw/mods/fml/common/FMLCommonHandler.java
@@ -632,4 +632,9 @@
 			Runtime.getRuntime().exit(exitCode);
 		}
 	}
+
+	public String stripSpecialChars(String message)
+	{
+		return sidedDelegate != null ? sidedDelegate.stripSpecialChars(message) : message;
+	}
 }
\ No newline at end of file
diff --git a/src/main/java/cpw/mods/fml/common/IFMLSidedHandler.java b/src/main/java/cpw/mods/fml/common/IFMLSidedHandler.java
index 0672762..7461554 100644
--- a/src/main/java/cpw/mods/fml/common/IFMLSidedHandler.java
+++ b/src/main/java/cpw/mods/fml/common/IFMLSidedHandler.java
@@ -63,4 +63,6 @@
 	void allowLogins();
 
 	void processWindowMessages();
+
+	String stripSpecialChars(String message);
 }
\ No newline at end of file
diff --git a/src/main/java/cpw/mods/fml/common/ProgressManager.java b/src/main/java/cpw/mods/fml/common/ProgressManager.java
index 38ffead..1211d00 100644
--- a/src/main/java/cpw/mods/fml/common/ProgressManager.java
+++ b/src/main/java/cpw/mods/fml/common/ProgressManager.java
@@ -71,7 +71,7 @@
 		{
 			if(step >= steps) throw new IllegalStateException("too much steps for ProgressBar " + title);
 			step++;
-			this.message = message;
+			this.message = FMLCommonHandler.instance().stripSpecialChars(message);
 			FMLCommonHandler.instance().processWindowMessages();
 		}
 
diff --git a/src/main/java/cpw/mods/fml/common/asm/transformers/EventSubscriptionTransformer.java b/src/main/java/cpw/mods/fml/common/asm/transformers/EventSubscriptionTransformer.java
index 5ae8986..bd5f5c7 100644
--- a/src/main/java/cpw/mods/fml/common/asm/transformers/EventSubscriptionTransformer.java
+++ b/src/main/java/cpw/mods/fml/common/asm/transformers/EventSubscriptionTransformer.java
@@ -65,7 +65,7 @@
 		{
 			if (buildEvents(classNode))
 			{
-				ClassWriter cw = new ClassWriter(COMPUTE_MAXS | COMPUTE_FRAMES);
+				ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
 				classNode.accept(cw);
 				return cw.toByteArray();
 			}
diff --git a/src/main/java/cpw/mods/fml/server/FMLServerHandler.java b/src/main/java/cpw/mods/fml/server/FMLServerHandler.java
index 114ce4a..c563a6f 100644
--- a/src/main/java/cpw/mods/fml/server/FMLServerHandler.java
+++ b/src/main/java/cpw/mods/fml/server/FMLServerHandler.java
@@ -259,7 +259,7 @@
 	{
 		return DedicatedServer.allowPlayerLogins;
 	}
-	
+
 	@Override
 	public void allowLogins() {
 		DedicatedServer.allowPlayerLogins = true;
@@ -270,4 +270,10 @@
 	{
 		// NOOP
 	}
+
+	@Override
+	public String stripSpecialChars(String message)
+	{
+		return message;
+	}
 }
\ No newline at end of file