diff --git a/openlp.py b/openlp.py
index 8a53fe965..5d507606d 100755
--- a/openlp.py
+++ b/openlp.py
@@ -36,10 +36,9 @@ if __name__ == '__main__':
     """
     Instantiate and run the application.
     """
-    # Mac OS X passes arguments like '-psn_XXXX' to gui application.
-    # This argument is process serial number. However, this causes
-    # conflict with other OpenLP arguments. Since we do not use this
-    # argument we can delete it to avoid any potential conflicts.
+    # Mac OS X passes arguments like '-psn_XXXX' to the application. This argument is actually a process serial number.
+    # However, this causes a conflict with other OpenLP arguments. Since we do not use this argument we can delete it
+    # to avoid any potential conflicts.
     if sys.platform.startswith('darwin'):
         sys.argv = [x for x in sys.argv if not x.startswith('-psn')]
     main()
diff --git a/openlp/core/__init__.py b/openlp/core/__init__.py
index 32ef5c5a3..cb9105797 100644
--- a/openlp/core/__init__.py
+++ b/openlp/core/__init__.py
@@ -59,7 +59,7 @@ __all__ = ['OpenLP', 'main']
 
 log = logging.getLogger()
 
-NT_REPAIR_STYLESHEET = """
+WIN_REPAIR_STYLESHEET = """
 QMainWindow::separator
 {
   border: none;
@@ -127,7 +127,7 @@ class OpenLP(OpenLPMixin, QtGui.QApplication):
                 'QTableWidget, QListWidget, QTreeWidget {alternate-background-color: ' + base_color.name() + ';}\n'
             application_stylesheet += alternate_rows_repair_stylesheet
         if is_win():
-            application_stylesheet += NT_REPAIR_STYLESHEET
+            application_stylesheet += WIN_REPAIR_STYLESHEET
         if application_stylesheet:
             self.setStyleSheet(application_stylesheet)
         show_splash = Settings().value('core/show splash')
diff --git a/openlp/core/common/openlpmixin.py b/openlp/core/common/openlpmixin.py
index 1c7fe7d5a..3e8a8926a 100644
--- a/openlp/core/common/openlpmixin.py
+++ b/openlp/core/common/openlpmixin.py
@@ -33,6 +33,7 @@ import logging
 import inspect
 
 from openlp.core.common import trace_error_handler
+
 DO_NOT_TRACE_EVENTS = ['timerEvent', 'paintEvent', 'drag_enter_event', 'drop_event', 'on_controller_size_changed',
                        'preview_size_changed', 'resizeEvent']
 
@@ -41,11 +42,8 @@ class OpenLPMixin(object):
     """
     Base Calling object for OpenLP classes.
     """
-    def __init__(self, parent):
-        try:
-            super(OpenLPMixin, self).__init__(parent)
-        except TypeError:
-            super(OpenLPMixin, self).__init__()
+    def __init__(self, *args, **kwargs):
+        super(OpenLPMixin, self).__init__(*args, **kwargs)
         self.logger = logging.getLogger("%s.%s" % (self.__module__, self.__class__.__name__))
         if self.logger.getEffectiveLevel() == logging.DEBUG:
             for name, m in inspect.getmembers(self, inspect.ismethod):