diff --git a/src/calibre/ebooks/metadata/opf.py b/src/calibre/ebooks/metadata/opf.py
index da35a7de0a..e8075465a7 100644
--- a/src/calibre/ebooks/metadata/opf.py
+++ b/src/calibre/ebooks/metadata/opf.py
@@ -237,7 +237,7 @@ class OPF(MetaInformation):
     
     def get_title(self):
         title = self.soup.package.metadata.find('dc:title')
-        if title and title.string:
+        if title:
             return self.ENTITY_PATTERN.sub(entity_to_unicode, title.string).strip()
         return self.default_title.strip()
     
diff --git a/src/calibre/ebooks/mobi/reader.py b/src/calibre/ebooks/mobi/reader.py
index 31b4510510..d2c1327714 100644
--- a/src/calibre/ebooks/mobi/reader.py
+++ b/src/calibre/ebooks/mobi/reader.py
@@ -194,8 +194,6 @@ class MobiReader(object):
         
     def cleanup(self):
         self.processed_html = re.sub(r'<div height="0(pt|px|ex|em|%){0,1}"></div>', '', self.processed_html)
-        self.processed_html = re.sub(r'<([^>]*) height="([^"]*)"', r'<\1 style="margin-top: \2"', self.processed_html)
-        self.processed_html = re.sub(r'<([^>]*) width="([^"]*)"', r'<\1 style="text-indent: \2"', self.processed_html)
     
     def create_opf(self, htmlfile, guide=None):
         mi = self.book_header.exth.mi