--- modules/image/image.module.~1.45.~	2010-08-09 21:55:57.000000000 +0200
+++ modules/image/image.module	2010-08-22 15:34:15.000000000 +0200
@@ -698,6 +698,7 @@
   }
 
   if (!$image = image_load($source)) {
+    watchdog('image', 'Failed to load image from source %source', array('%source' => $source), WATCHDOG_ERROR);
     return FALSE;
   }