diff --git a/src/calibre/customize/profiles.py b/src/calibre/customize/profiles.py
index 1a8e43a233..89e9a30111 100644
--- a/src/calibre/customize/profiles.py
+++ b/src/calibre/customize/profiles.py
@@ -235,7 +235,7 @@ class SonyReaderOutput(OutputProfile):
     description = _('This profile is intended for the SONY PRS line. '
                     'The 500/505/600/700 etc.')
 
-    screen_size               = (600, 775)
+    screen_size               = (584, 775)
     dpi                       = 168.451
     fbase                     = 12
     fsizes                    = [7.5, 9, 10, 12, 15.5, 20, 22, 24]
diff --git a/src/calibre/ebooks/oeb/transforms/rescale.py b/src/calibre/ebooks/oeb/transforms/rescale.py
index fbf0e9bc4f..6ed863929c 100644
--- a/src/calibre/ebooks/oeb/transforms/rescale.py
+++ b/src/calibre/ebooks/oeb/transforms/rescale.py
@@ -53,7 +53,8 @@ class RescaleImages(object):
                 scaled, new_width, new_height = fit_image(width, height,
                         page_width, page_height)
                 if scaled:
-                    self.log('Rescaling image', item.href)
+                    self.log('Rescaling image from %dx%d to %dx%d'%(
+                        width, height, new_width, new_height), item.href)
                     if qt:
                         img = img.scaled(new_width, new_height,
                                 Qt.IgnoreAspectRatio, Qt.SmoothTransformation)