Index: webform_submissions.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/webform/webform_submissions.inc,v
retrieving revision 1.1.2.6
diff -u -r1.1.2.6 webform_submissions.inc
--- webform_submissions.inc	26 Feb 2008 19:54:12 -0000	1.1.2.6
+++ webform_submissions.inc	28 Feb 2008 15:27:57 -0000
@@ -249,7 +249,7 @@
            "AND submitted > %d AND nid = %d";
 
   // Fetch all the entries from the database within the submit interval with this username and IP.
-  $result = db_query($query, $user->uid, $_SERVER['REMOTE_ADDR'], $user->uid, time() - $node->webform['submit_interval'], $node->nid);
+  $result = db_query($query, $user->uid, $_SERVER['REMOTE_ADDR'], $user->uid, ($node->webform['submit_interval'] != -1) ? (time() - $node->webform['submit_interval']) : $node->webform['submit_interval'], $node->nid);
   $num_submissions_database = db_num_rows($result);
 
   // Double check the submission history from the users machine using cookies.