Index: modules/image/image.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/image/image.module,v
retrieving revision 1.179
diff -u -r1.179 image.module
--- modules/image/image.module	8 Jan 2006 16:19:21 -0000	1.179
+++ modules/image/image.module	30 Jan 2006 15:37:47 -0000
@@ -797,8 +797,9 @@
  * Helper function to return the defined sizes (or proper defaults).
  */
 function _image_get_sizes() {
-  return variable_get('image_sizes', array(array('width' => 100, 'height' => 100, 'label' => t('thumbnail')),
-                                           array('width' => 640, 'height' => 640, 'label' => t('preview'))));
+  $sizes = variable_get('image_sizes', array(array('width' => 100, 'height' => 100, 'label' => t('thumbnail')),
+                                           array('width' => 640, 'height' => 640, 'label' => t('preview'))));
+  return array_filter($sizes, create_function('$size', 'return !empty($size["label"]);'));
 }
 
 function _image_required_sizes() {