diff --git a/src/gui/__init__.py b/src/gui/__init__.py
--- a/src/gui/__init__.py
+++ b/src/gui/__init__.py
@@ -1,4 +1,5 @@
-import threading
+import logging
+import threading
 import tkinter as tk
 
 import config
@@ -6,6 +7,8 @@ from .mainwindow import MainWindow
 from .boardview import BoardView
 from .settings import Settings
 
+log=logging.getLogger(__name__)
+
 
 class GUI:
 	SETUP=PREVIEW=0
@@ -22,6 +25,7 @@ class GUI:
 		self._state=GUI.SETUP
 
 		self.mainWindow = MainWindow(self, master=self.root)
+		self.settings=None
 		self.root.columnconfigure(0,weight=1)
 		self.root.rowconfigure(0,weight=1)
 
@@ -54,9 +58,16 @@ class GUI:
 		self.mainWindow.setRecording()
 		self.root.bind("<Left>",lambda e: None)
 		self.root.bind("<Right>",lambda e: None)
+		if self.settings:
+			self.settings.destroy()
+			self.settings=None
 
 	def _handleEvent(self,e):
-		actions={"setCurrentFrame":self._frameHandler, "setGameState":self._stateHandler}
+		actions={
+			"setCurrentFrame": self._frameHandler,
+			"setGameState": self._stateHandler,
+			"setParams": self._paramsHandler
+		}
 		(actionName,args,kwargs)=e
 
 		return actions[actionName](*args,**kwargs)
@@ -70,6 +81,13 @@ class GUI:
 		labels={(row,col):(i+1) for (i,(c,row,col)) in enumerate(moves)}
 		self.mainWindow.boardView.redrawState(gameState,labels)
 
+	def _paramsHandler(self,**params):
+		if not self.settings:
+			log.warning("received 'setParams' message while settings is '%s'",str(self.settings))
+			return
+		self.settings.setParams(**params)
+
+
 gui=GUI()
 
 """