diff --git a/eric/Preferences/__init__.py b/eric/Preferences/__init__.py
index 1d6bfed..7f376ba 100644
--- a/eric/eric6/Preferences/__init__.py
+++ b/eric/eric6/Preferences/__init__.py
@@ -203,7 +203,7 @@ class Prefs(object):
         "SplitOrientationVertical": False,
         "UseNativeMenuBar": True,
         
-        "PerformVersionCheck": 3,
+        "PerformVersionCheck": 0,
         # 0 = off
         # 1 = at startup
         # 2 = daily
@@ -889,17 +889,17 @@ class Prefs(object):
     
     # defaults for the help settings
     helpDefaults = {
         "CustomViewer": "",
-        "PythonDocDir": "",
-        "Python2DocDir": "",
-        "QtDocDir": "",
-        "Qt4DocDir": "",
-        "Qt5DocDir": "",
-        "PyQt4DocDir": "",
-        "PyQt5DocDir": "",
-        "PySideDocDir": "",
-        "PySide2DocDir": "",
-        "EricDocDir": "",
+        "PythonDocDir": "https://docs.python.org/3/",
+        "Python2DocDir": "https://docs.python.org/2/",
+        "QtDocDir": "https://doc.qt.io/qt-5/",
+        "Qt4DocDir": "https://doc.qt.io/archives/qt-4.8/",
+        "Qt5DocDir": "https://doc.qt.io/qt-5/",
+        "PyQt4DocDir": "https://www.riverbankcomputing.com/static/Docs/PyQt4/",
+        "PyQt5DocDir": "https://www.riverbankcomputing.com/static/Docs/PyQt5/",
+        "PySideDocDir": "https://pyside.github.io/docs/pyside/index.html",
+        "PySide2DocDir": "https://doc.qt.io/qtforpython/PySide2/QtGui/index.html",
+        "EricDocDir": "https://eric-ide.python-projects.org/eric-documentation.html",
         "SingleHelpWindow": True,
         "SaveGeometry": True,
         "HelpViewerState": QByteArray(),
@@ -1325,7 +1325,7 @@ class Prefs(object):
         "Qt5TranslationsDir": "",
         "QtToolsDir": "",
         "QtToolsPrefix4": "",
-        "QtToolsPostfix4": "",
+        "QtToolsPostfix4": "-qt4",
         "PyuicIndent": 4,
         "PyuicFromImports": False,
         "PyQtToolsDir": "",