diff --git a/resources/images/tb_folder.png b/resources/images/tb_folder.png
new file mode 100644
index 0000000000..014529be3d
Binary files /dev/null and b/resources/images/tb_folder.png differ
diff --git a/resources/recipes/ming_pao.recipe b/resources/recipes/ming_pao.recipe
index 9febcec0e5..bbdbbf7ace 100644
--- a/resources/recipes/ming_pao.recipe
+++ b/resources/recipes/ming_pao.recipe
@@ -31,7 +31,9 @@ class MPHKRecipe(BasicNewsRecipe):
     oldest_article = 1
     max_articles_per_feed = 100
     __author__            = 'Eddie Lau'
-    description           = 'Hong Kong Chinese Newspaper (http://news.mingpao.com)'
+    description = ('Hong Kong Chinese Newspaper (http://news.mingpao.com). If'
+                  'you are using a Kindle with firmware < 3.1, customize the'
+                  'recipe')
     publisher             = 'MingPao'
     category              = 'Chinese, News, Hong Kong'
     remove_javascript = True
diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index 385849ae79..09c755ab5e 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -2371,7 +2371,7 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
         rating = int(rating)
         self.conn.execute('DELETE FROM books_ratings_link WHERE book=?',(id,))
         rat = self.conn.get('SELECT id FROM ratings WHERE rating=?', (rating,), all=False)
-        rat = rat if rat else self.conn.execute('INSERT INTO ratings(rating) VALUES (?)', (rating,)).lastrowid
+        rat = rat if rat is not None else self.conn.execute('INSERT INTO ratings(rating) VALUES (?)', (rating,)).lastrowid
         self.conn.execute('INSERT INTO books_ratings_link(book, rating) VALUES (?,?)', (id, rat))
         self.dirtied([id], commit=False)
         if commit: