diff --git a/app.py b/app.py
index ca35bab..f9a1a6b 100644
--- a/app.py
+++ b/app.py
@@ -80,7 +80,7 @@ USER_LOG_DIR = os.path.join(USER_INV_DIR, u'logs')
 
 # ------------------------------------------------------------------
 
-if sys.platform == 'linux2':
+if sys.platform in ('linux2', 'win32'):
     try:
         tmp_var = wx.GetXDisplay
     except AttributeError:
diff --git a/invesalius/gui/import_network_panel.py b/invesalius/gui/import_network_panel.py
index c4b9dab..034ecb9 100644
--- a/invesalius/gui/import_network_panel.py
+++ b/invesalius/gui/import_network_panel.py
@@ -674,7 +674,10 @@ class NodesPanel(wx.Panel):
         self.tree_node.SetColumnWidth(4, 80)
 
         self.hosts[0] = [True, "localhost", "", "invesalius"]
-        index = self.tree_node.InsertStringItem(sys.maxsize, "")
+        try:
+            index = self.tree_node.InsertStringItem(sys.maxsize, "")
+        except OverflowError:
+            index = self.tree_node.InsertStringItem(sys.maxint, "")
         self.tree_node.SetStringItem(index, 1, "localhost")
         self.tree_node.SetStringItem(index, 2, "")
         self.tree_node.SetStringItem(index, 3, "invesalius")
--
libgit2 0.21.2