diff --git a/locale/pl/LC_MESSAGES/pysol.mo b/locale/pl/LC_MESSAGES/pysol.mo
index 8e445a03c..3c3f76864 100644
Binary files a/locale/pl/LC_MESSAGES/pysol.mo and b/locale/pl/LC_MESSAGES/pysol.mo differ
diff --git a/locale/pt_BR/LC_MESSAGES/pysol.mo b/locale/pt_BR/LC_MESSAGES/pysol.mo
index f9dd965f7..2297e4d01 100644
Binary files a/locale/pt_BR/LC_MESSAGES/pysol.mo and b/locale/pt_BR/LC_MESSAGES/pysol.mo differ
diff --git a/pysollib/kivy/LObjWrap.py b/pysollib/kivy/LObjWrap.py
index b43d4dcea..326ee3607 100644
--- a/pysollib/kivy/LObjWrap.py
+++ b/pysollib/kivy/LObjWrap.py
@@ -40,7 +40,7 @@ def __init__(self,obj,ref=None,command=None):
             self.bind(value=command)
 
     def on_value(self,inst,val):
-        logging.info("LObjWrap: %s = %s" % (self.ref,val))
+        # logging.info("LObjWrap: %s = %s" % (self.ref,val))
         if self.ref is not None:
             setattr(self.obj,self.ref,val)
 
diff --git a/pysollib/kivy/tkwidget.py b/pysollib/kivy/tkwidget.py
index cecc33c2c..68c07a304 100644
--- a/pysollib/kivy/tkwidget.py
+++ b/pysollib/kivy/tkwidget.py
@@ -387,6 +387,7 @@ def __init__(self, inner, **kw):
         self.scale_min = 1.0
         self.scale_max = 2.2
         self.lock_pos = None
+        self.lock_chk = None
         self.offset = None
         self.tkopt = None
 
@@ -420,8 +421,10 @@ def _update(self):
                 dx = round(self.offset[0] * (self.bbox[1][0] - self.size[0]))
                 dy = round(self.offset[1] * (self.bbox[1][1] - self.size[1]))
                 self.pos = (self.parent.pos[0]-dx,self.parent.pos[1]-dy)
+                if self.lock_chk is None:
+                    Clock.schedule_once(lambda dt: self.chk_bnd()) # noqa
             self.lock_pos = None
-            print("_update",self.pos,self.size)
+            # print("_update",self.pos,self.size)
 
     def _updatesize(self,instance,value):
         self.inner.size = self.size
@@ -466,6 +469,10 @@ def on_transform_with_touch(self,touch):
     def chk_bnd(self):
         # Keep the game on the screen.
 
+        # check and set lock
+        if self.lock_chk is not None: return
+        self.lock_chk = "locked"
+
         # limiting parameters:
         pos,size = self.bbox
         w,h = size
@@ -502,6 +509,9 @@ def chk_bnd(self):
             zoominfo = [zoom, 0.0, 0.0]
         self.tkopt.table_zoom.value = zoominfo
 
+        # remove lock
+        self.lock_chk = None
+
 
 class LScrollFrame(BoxLayout,StencilView):
     def __init__(self, **kw):