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": "",