Index: location.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/location/location.module,v
retrieving revision 1.222.2.47
diff -u -p -r1.222.2.47 location.module
--- location.module	8 Feb 2011 10:43:02 -0000	1.222.2.47
+++ location.module	9 Feb 2011 16:10:22 -0000
@@ -1150,6 +1150,10 @@ function location_save(&$location, $cow 
   if (!empty($location['lid'])) {
     watchdog('location', 'Conserving lid %lid due to uniqueness.', array('%lid' => $location['lid']));
     drupal_write_record('location', $location, array('lid'));
+    if (!db_affected_rows()) {
+      watchdog('location', 'Update location failed. Trying insert.');
+      drupal_write_record('location', $location);
+    }
   }
   else {
     unset($location['lid']);