Index: lightbox2.insert.inc
=========================================================
--- lightbox2.insert.inc	(revision 1.1.2.6)
+++ lightbox2.insert.inc	Tue Nov 16 18:16:56 CET 2010
@@ -57,10 +57,12 @@
   }
   $vars['linkurl'] = insert_create_url($linkpath);
 
+  $linkpath_original = $vars['item']['filepath'];
   $vars['download_link'] = '';
   $download_link_text = check_plain(variable_get('lightbox2_download_link_text', 'Download Original'));
   if (!empty($download_link_text) && user_access('download original image')) {
-    $vars['download_link'] = '<br /><br />' . l($download_link_text, $vars['linkurl'], array('attributes' => array('target' => '_blank', 'id' => 'lightbox2-download-link-text')));
+    $vars['download_link'] = '<br /><br />' . str_replace('"', '\'', l($download_link_text, $linkpath_original, 
+    array('attributes' => array('target' => '_blank', 'id' => 'lightbox2-download-link-text'))));
   }
 
   $vars['class'] = !empty($vars['widget']['insert_class']) ? $vars['widget']['insert_class'] : '';