diff --git a/src/calibre/ebooks/epub/__init__.py b/src/calibre/ebooks/epub/__init__.py
index 1aaac5c558..5ef305466d 100644
--- a/src/calibre/ebooks/epub/__init__.py
+++ b/src/calibre/ebooks/epub/__init__.py
@@ -20,7 +20,7 @@ class DefaultProfile(object):
 class PRS505(DefaultProfile):
     
     flow_size   = 270000
-    screen_size = (590, 770)
+    screen_size = (590, 765)
     remove_special_chars = re.compile(u'[\u200b\u00ad]')
         
 
diff --git a/src/calibre/library/static/default_cover.jpg b/src/calibre/library/static/default_cover.jpg
new file mode 100644
index 0000000000..d3d941201b
Binary files /dev/null and b/src/calibre/library/static/default_cover.jpg differ