diff --git a/src/libprs500/ebooks/metadata/rtf.py b/src/libprs500/ebooks/metadata/rtf.py
index bfb29633cf..e636b319b1 100644
--- a/src/libprs500/ebooks/metadata/rtf.py
+++ b/src/libprs500/ebooks/metadata/rtf.py
@@ -68,7 +68,8 @@ def get_metadata(stream):
     """ Return metadata as a L{MetaInfo} object """
     stream.seek(0)
     if stream.read(5) != r'{\rtf':
-        raise Exception('Not a valid RTF file')
+        name = stream.name if hasattr(stream, 'name') else repr(stream)
+        raise Exception('Not a valid RTF file: '+name)
     block = get_document_info(stream)[0]
     if not block:
         return MetaInformation(None, None)
diff --git a/src/libprs500/gui2/dialogs/lrf_single.ui b/src/libprs500/gui2/dialogs/lrf_single.ui
index 931aaedea0..3755435efe 100644
--- a/src/libprs500/gui2/dialogs/lrf_single.ui
+++ b/src/libprs500/gui2/dialogs/lrf_single.ui
@@ -247,7 +247,10 @@
                  <item row="2" column="0" >
                   <widget class="QCheckBox" name="gui_use_metadata_cover" >
                    <property name="text" >
-                    <string>Use &amp;metadata cover</string>
+                    <string>Use cover from &amp;source file</string>
+                   </property>
+                   <property name="checked" >
+                    <bool>true</bool>
                    </property>
                   </widget>
                  </item>
@@ -923,8 +926,8 @@
             <property name="html" >
              <string>&lt;html>&lt;head>&lt;meta name="qrichtext" content="1" />&lt;style type="text/css">
 p, li { white-space: pre-wrap; }
-&lt;/style>&lt;/head>&lt;body style=" font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;">
-&lt;p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">&lt;/p>&lt;/body>&lt;/html></string>
+&lt;/style>&lt;/head>&lt;body style=" font-family:'DejaVu Sans'; font-size:9pt; font-weight:400; font-style:normal;">
+&lt;p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Sans Serif';">&lt;/p>&lt;/body>&lt;/html></string>
             </property>
            </widget>
           </item>