Index: modules/image/image.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/image/image.module,v
retrieving revision 1.42
diff -u -p -r1.42 image.module
--- modules/image/image.module	1 May 2010 08:12:23 -0000	1.42
+++ modules/image/image.module	6 Jun 2010 23:58:47 -0000
@@ -344,7 +344,7 @@ function image_image_default_styles() {
     'effects' => array(
       array(
         'name' => 'image_scale',
-        'data' => array('width' => 640, 'height' => 640, 'upscale' => 0),
+        'data' => array('width' => 480, 'height' => 480, 'upscale' => 0),
         'weight' => 0,
       ),
     )