diff --git a/src/calibre/ebooks/mobi/reader.py b/src/calibre/ebooks/mobi/reader.py
index 41e6cb8417..a3aa5b7ae7 100644
--- a/src/calibre/ebooks/mobi/reader.py
+++ b/src/calibre/ebooks/mobi/reader.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env  python
+from __future__ import with_statement
 __license__   = 'GPL v3'
 __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 '''
@@ -206,7 +206,8 @@ class MobiReader(object):
                 ref['href'] = os.path.basename(htmlfile)+ref['href']
         except AttributeError:
             pass
-        open(htmlfile, 'wb').write(unicode(soup).encode('utf8'))
+        with open(htmlfile, 'wb') as f:
+            f.write(unicode(soup).encode('utf8'))
         self.htmlfile = htmlfile
         
         if self.book_header.exth is not None:
diff --git a/src/calibre/gui2/dialogs/config.py b/src/calibre/gui2/dialogs/config.py
index e5a71a0f8b..c4e673c8b8 100644
--- a/src/calibre/gui2/dialogs/config.py
+++ b/src/calibre/gui2/dialogs/config.py
@@ -43,10 +43,6 @@ class ConfigDialog(QDialog, Ui_Dialog):
         self.directory_list.addItems(dirs)
         self.connect(self.add_button, SIGNAL('clicked(bool)'), self.add_dir)
         self.connect(self.remove_button, SIGNAL('clicked(bool)'), self.remove_dir)
-        self.priority.addItem('Normal')
-        self.priority.addItem('Low')
-        self.priority.addItem('Lowest')
-        self.priority.addItem('Idle')
         if not islinux:
             self.dirs_box.setVisible(False)
         
diff --git a/src/calibre/gui2/dialogs/config.ui b/src/calibre/gui2/dialogs/config.ui
index 7faa38e715..776855fa7c 100644
--- a/src/calibre/gui2/dialogs/config.ui
+++ b/src/calibre/gui2/dialogs/config.ui
@@ -72,7 +72,7 @@
      <item>
       <widget class="QStackedWidget" name="stackedWidget" >
        <property name="currentIndex" >
-        <number>1</number>
+        <number>0</number>
        </property>
        <widget class="QWidget" name="page_3" >
         <layout class="QVBoxLayout" name="verticalLayout" >
@@ -163,19 +163,6 @@
             <widget class="QComboBox" name="single_format" />
            </item>
            <item row="2" column="0" >
-            <widget class="QLabel" name="label_3" >
-             <property name="text" >
-              <string>&amp;Priority for conversion jobs:</string>
-             </property>
-             <property name="buddy" >
-              <cstring>priority</cstring>
-             </property>
-            </widget>
-           </item>
-           <item row="2" column="1" >
-            <widget class="QComboBox" name="priority" />
-           </item>
-           <item row="3" column="0" >
             <widget class="QLabel" name="label_2" >
              <property name="text" >
               <string>Default network &amp;timeout:</string>
@@ -185,7 +172,7 @@
              </property>
             </widget>
            </item>
-           <item row="3" column="1" >
+           <item row="2" column="1" >
             <widget class="QSpinBox" name="timeout" >
              <property name="toolTip" >
               <string>Set the default timeout for network fetches (i.e. anytime we go out to the internet to get information)</string>
@@ -204,10 +191,10 @@
              </property>
             </widget>
            </item>
-           <item row="4" column="1" >
+           <item row="3" column="1" >
             <widget class="QComboBox" name="language" />
            </item>
-           <item row="4" column="0" >
+           <item row="3" column="0" >
             <widget class="QLabel" name="label_7" >
              <property name="text" >
               <string>Choose &amp;language (requires restart):</string>