Index: imagefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/imagefield/imagefield.module,v
retrieving revision 1.71
diff -u -u -p -r1.71 imagefield.module
--- imagefield.module	27 Aug 2008 15:03:06 -0000	1.71
+++ imagefield.module	2 Jan 2009 11:37:45 -0000
@@ -282,7 +282,7 @@ function theme_imagefield_image($file, $
     $attributes = drupal_attributes($attributes);
     $alt = empty($alt) ? $file['alt'] : $alt;
     $title = empty($title) ? $file['title'] : $title;
-    $url = file_create_url($file['filepath']);
+    $url = file_create_url($file['filepath']) . '?' . filemtime($file['filepath']);
     return '<img src="'. check_url($url) .'" alt="'.
         check_plain($alt) .'" title="'. check_plain($title) .'" '. $image_attributes . $attributes .' />';
   }