diff --git a/include/arm11/config.h b/include/arm11/config.h
index 14e4092..67abc20 100644
--- a/include/arm11/config.h
+++ b/include/arm11/config.h
@@ -44,6 +44,7 @@
 #define numKeys  KLast
 
 bool loadConfigFile();
+bool configHasChanged();
 bool writeConfigFile();
 void *configCopyText(int key);
 const void *configGetData(int key);
diff --git a/source/arm11/config.c b/source/arm11/config.c
index 20b129f..0cee1ff 100644
--- a/source/arm11/config.c
+++ b/source/arm11/config.c
@@ -101,6 +101,7 @@
 static char *filebuf = NULL;
 
 static bool configLoaded = false;
+static bool configDirty = false;
 
 /* This loads the config file from SD card or eMMC and parses it */
 bool loadConfigFile()
@@ -112,6 +113,8 @@
 	if(configLoaded)
 		unloadConfigFile();
 	
+	configDirty = false;
+	
 	// first, try SD card fatfs
 	if(true) // !!! if(bootInfo.sd_status == 2)
 	{
@@ -215,6 +218,11 @@
 	}
 }
 
+bool configHasChanged()
+{
+	return configDirty;
+}
+
 bool writeConfigFile()
 {
 	if(!filebuf)
@@ -864,7 +872,13 @@
 	if(!keyFunctions[key].write)
 		panicMsg("Unimplemented key function!");
 	
-	return keyFunctions[key].write(attr, data, key);
+	if(keyFunctions[key].write(attr, data, key))
+	{
+		configDirty = true;
+		return true;
+	}
+	
+	return false;
 }
 
 void configRestoreDefaults()
@@ -879,6 +893,8 @@
 		else
 			configSetKeyData(key, "");
 	}
+	
+	configDirty = true;
 }
 
 
@@ -901,6 +917,8 @@
 		attr->textData = NULL;
 		attr->textLength = 0;
 		
+		configDirty = true;
+		
 		return true;
 	}