diff --git a/demo/agw/SpeedMeter.py b/demo/agw/SpeedMeter.py
index f3c11114..362af524 100644
--- a/demo/agw/SpeedMeter.py
+++ b/demo/agw/SpeedMeter.py
@@ -31,6 +31,9 @@ class SpeedMeterDemo(wx.Panel):
 
         wx.Panel.__init__(self, parent, style=wx.TAB_TRAVERSAL|wx.NO_FULL_REPAINT_ON_RESIZE)
 
+        wx.CallLater(50, self.laterStuff)
+
+    def laterStuff(self):
         panel = wx.Panel(self, -1)
         sizer = wx.FlexGridSizer(rows=2, cols=3, vgap=2, hgap=5)
 
@@ -516,6 +519,8 @@ class SpeedMeterDemo(wx.Panel):
         self.SetSizer(mainSizer)
         mainSizer.Layout()
 
+        self.SendSizeEvent()
+        
         self.timer.Start(1000)
         self.timer3.Start(500)
 
diff --git a/wx/lib/agw/speedmeter.py b/wx/lib/agw/speedmeter.py
index 98026e01..7e20b37f 100644
--- a/wx/lib/agw/speedmeter.py
+++ b/wx/lib/agw/speedmeter.py
@@ -365,17 +365,11 @@ class BufferedWindow(wx.Window):
         # Make new off screen bitmap: this bitmap will always have the
         # current drawing in it, so it can be used to save the image to
         # a file, or whatever.
-
-        # This seems required on MacOS, it doesn't like wx.Bitmap with
-        # size = (0, 0)
-        # Thanks to Gerard Grazzini
-
-        if "__WXMAC__" in wx.Platform:
-            if self.Width == 0:
-                self.Width = 1
-            if self.Height == 0:
-                self.Height = 1
-
+        
+        # Some platforms object to creating bitmaps with size < (1,1)
+        self.Width = max(self.Width, 1)
+        self.Height = max(self.Height, 1)
+        
         self._Buffer = wx.Bitmap(self.Width, self.Height)
         self.UpdateDrawing()
 
diff --git a/wx/lib/fancytext.py b/wx/lib/fancytext.py
index 46a6e279..2feb5f3c 100644
--- a/wx/lib/fancytext.py
+++ b/wx/lib/fancytext.py
@@ -234,6 +234,7 @@ class Renderer:
     def renderCharacterData(self, data, x, y):
         raise NotImplementedError()
 
+from wx.lib.six import PY3
 
 def _addGreek():
     alpha = 0xE1
@@ -243,7 +244,10 @@ def _addGreek():
     for i, name in enumerate(_greek_letters):
         def start(self, attrs, code=chr(alpha+i)):
             self.start_font({"encoding" : _greekEncoding})
-            self.characterData(code)
+            if not PY3:
+                self.characterData(code.decode('iso8859-7'))
+            else:
+                self.characterData(code)
             self.end_font()
         setattr(Renderer, "start_%s" % name, start)
         setattr(Renderer, "end_%s" % name, end)
@@ -251,7 +255,10 @@ def _addGreek():
             continue # There is no capital for altsigma
         def start(self, attrs, code=chr(Alpha+i)):
             self.start_font({"encoding" : _greekEncoding})
-            self.characterData(code)
+            if not PY3:
+                self.characterData(code.decode('iso8859-7'))
+            else:
+                self.characterData(code)
             self.end_font()
         setattr(Renderer, "start_%s" % name.capitalize(), start)
         setattr(Renderer, "end_%s" % name.capitalize(), end)