diff --git a/snakerunner/listviews.py b/snakerunner/listviews.py
index 3db1acc..c892293 100644
--- a/snakerunner/listviews.py
+++ b/snakerunner/listviews.py
@@ -258,7 +258,7 @@ def integrateRecords(self, functions):
         self.reorder()
         self.Refresh()
 
-    indicated_attribute = wx.ListItemAttr()
+    indicated_attribute = wx.ItemAttr()
     indicated_attribute.SetBackgroundColour('#00ff00')
 
     def OnGetItemAttr(self, item):
diff --git a/snakerunner/snakerunner.py b/snakerunner/snakerunner.py
index 2e63688..0d0d447 100755
--- a/snakerunner/snakerunner.py
+++ b/snakerunner/snakerunner.py
@@ -27,20 +27,18 @@
 
 log = logging.getLogger(__name__)
 
-ID_OPEN = wx.NewId()
-ID_EXIT = wx.NewId()
+ID_OPEN = wx.NewIdRef(count=1)
+ID_EXIT = wx.NewIdRef(count=1)
 
-ID_TREE_TYPE = wx.NewId()
+ID_TREE_TYPE = wx.NewIdRef(count=1)
 
-#ID_PACKAGE_VIEW = wx.NewId()
-
-ID_PERCENTAGE_VIEW = wx.NewId()
-ID_ROOT_VIEW = wx.NewId()
-ID_BACK_VIEW = wx.NewId()
-ID_UP_VIEW = wx.NewId()
-ID_DEEPER_VIEW = wx.NewId()
-ID_SHALLOWER_VIEW = wx.NewId()
-ID_MORE_SQUARE = wx.NewId()
+ID_PERCENTAGE_VIEW = wx.NewIdRef(count=1)
+ID_ROOT_VIEW = wx.NewIdRef(count=1)
+ID_BACK_VIEW = wx.NewIdRef(count=1)
+ID_UP_VIEW = wx.NewIdRef(count=1)
+ID_DEEPER_VIEW = wx.NewIdRef(count=1)
+ID_SHALLOWER_VIEW = wx.NewIdRef(count=1)
+ID_MORE_SQUARE = wx.NewIdRef(count=1)
 
 PROFILE_VIEW_COLUMNS = [
     listviews.ColumnDefinition(
@@ -214,7 +212,6 @@ def CreateControls(self, config_parser):
         self.tabs.AddPage(self.callerListControl, _('Callers'), False)
         self.tabs.AddPage(self.allCallerListControl, _('All Callers'), False)
         self.tabs.AddPage(self.sourceCodeControl, _('Source Code'), False)
-        self.rightSplitter.SetSashSize(10)
         # calculate size as proportional value for initial display...
         self.LoadState(config_parser)
         width, height = self.GetSize()
diff --git a/snakerunner/squaremap.py b/snakerunner/squaremap.py
index 46c5fc8..0625d92 100755
--- a/snakerunner/squaremap.py
+++ b/snakerunner/squaremap.py
@@ -265,7 +265,7 @@ def FontForLabels(self, dc):
         ''' Return the default GUI font, scaled for printing if necessary. '''
         font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
         scale = dc.GetPPI()[0] / wx.ScreenDC().GetPPI()[0]
-        font.SetPointSize(scale*font.GetPointSize())
+        font.SetPointSize(int(scale)*font.GetPointSize())
         return font
 
     def BrushForNode(self, node, depth=0):
@@ -318,11 +318,11 @@ def DrawBox(self, dc, node, x, y, w, h, hot_map, depth=0):
         if sys.platform == 'darwin':
             # Macs don't like drawing small rounded rects...
             if w < self.padding*2 or h < self.padding*2:
-                dc.DrawRectangle(dx, dy, dw, dh)
+                dc.DrawRectangle(int(dx), int(dy), int(dw), int(dh))
             else:
-                dc.DrawRoundedRectangle(dx, dy, dw, dh, self.padding)
+                dc.DrawRoundedRectangle(int(dx), int(dy), int(dw), int(dh), float(self.padding))
         else:
-            dc.DrawRoundedRectangle(dx, dy, dw, dh, self.padding*3)
+            dc.DrawRoundedRectangle(int(dx), int(dy), int(dw), int(dh), float(self.padding*3))
 #        self.DrawIconAndLabel(dc, node, x, y, w, h, depth)
         children_hot_map = []
         hot_map.append(
@@ -363,7 +363,7 @@ def DrawIconAndLabel(self, dc, node, x, y, w, h, depth):
         ''' Draw the icon, if any, and the label, if any, of the node. '''
         if w-2 < self._em_size_//2 or h-2 < self._em_size_ // 2:
             return
-        dc.SetClippingRegion(x+1, y+1, w-2, h-2)  # Don't draw outside the box
+        dc.SetClippingRegion(int(x+1), int(y+1), int(w-2), int(h-2))  # Don't draw outside the box
         try:
             icon = self.adapter.icon(node, node == self.selectedNode)
             if icon and h >= icon.GetHeight() and w >= icon.GetWidth():
@@ -373,7 +373,7 @@ def DrawIconAndLabel(self, dc, node, x, y, w, h, depth):
                 iconWidth = 0
             if self.labels and h >= dc.GetTextExtent('ABC')[1]:
                 dc.SetTextForeground(self.TextForegroundForNode(node, depth))
-                dc.DrawText(self.adapter.label(node), x + iconWidth + 2, y+2)
+                dc.DrawText(self.adapter.label(node), int(x + iconWidth + 2), int(y+2))
         finally:
             dc.DestroyClippingRegion()
 
diff --git a/snakerunner/version.py b/snakerunner/version.py
index f593cd5..a33997d 100644
--- a/snakerunner/version.py
+++ b/snakerunner/version.py
@@ -1 +1 @@
-__version__ = '2.0.4'
+__version__ = '2.1.0'