diff --git a/lib/browse/Criteria.inc b/lib/browse/Criteria.inc
index e9f337b..ccad3d6 100644
--- a/lib/browse/Criteria.inc
+++ b/lib/browse/Criteria.inc
@@ -175,15 +175,18 @@ class BrowseCriterion {
     }
     
     function getNotWidget($aPreValue=null) {
-        if (is_null($aPreValue)) {
-            $is_positive = true;
-        }
         if (!$this->bHandleNot) { return ''; }
         
         // not perfect, but acceptable.
         $form_name = $this->getWidgetBase() . '_not';
         $pos_select = '';
         $neg_select = '';
+        if (is_null($aPreValue)) {
+            $is_positive = true;
+        } else {
+            $preval = KTUtil::arrayGet($aPreValue, $form_name, "0"); // by default, use "is" not "is not"
+            $is_positive = ($preval == "0"); // 0 or empty or similar.
+        }
         if ($is_positive) {
             $pos_select = ' selected="true"';
         } else {
@@ -220,7 +223,7 @@ class BrowseCriterion {
         if ($handle_not) {
             $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
             
-            if (is_null($want_invert)) {
+            if (is_null($want_invert) || ($want_invert == "0")) { // use explicit "0" check
                 return $val;
             } else {
                 $val[0] = '(NOT (' . $val[0] . '))';
@@ -394,7 +397,7 @@ class DateCreatedCriterion extends BrowseCriterion {
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
         
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $val;
         } else {
             $val[0] = '(NOT (' . $val[0] . '))';
@@ -519,7 +522,7 @@ class GenericMetadataCriterion extends BrowseCriterion {
         
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $p;
         } else {
             $p[0] = '(NOT (' . $p[0] . '))';
@@ -600,7 +603,7 @@ class ContentCriterion extends BrowseCriterion {
 
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $p;
         } else {
             $p[0] = '(NOT (' . $p[0] . '))';
@@ -637,7 +640,7 @@ class WorkflowStateCriterion extends BrowseCriterion {
         
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $p;
         } else {
             $p[0] = '(NOT (' . $p[0] . '))';
@@ -710,7 +713,7 @@ class TransactionTextCriterion extends BrowseCriterion {
         
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $p;
         } else {
             $p[0] = '(NOT (' . $p[0] . '))';
@@ -767,7 +770,7 @@ class SearchableTextCriterion extends BrowseCriterion {
         
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
-        if (is_null($want_invert)) {
+        if (is_null($want_invert) || ($want_invert == "0")) {
             return $p;
         } else {
             $p[0] = '(NOT (' . $p[0] . '))';
diff --git a/plugins/ktcore/admin/savedSearch.php b/plugins/ktcore/admin/savedSearch.php
index a4762db..96c78be 100755
--- a/plugins/ktcore/admin/savedSearch.php
+++ b/plugins/ktcore/admin/savedSearch.php
@@ -98,11 +98,11 @@ class KTSavedSearchDispatcher extends KTAdminDispatcher {
         }
         
         $aSearch = $oSearch->getSearch();
-
+        /*
 	print '<pre>';
 	print_r($aSearch);
 	exit(0);
-        
+        */
         
         $oTemplating =& KTTemplating::getSingleton();
         $oTemplate = $oTemplating->loadTemplate("ktcore/boolean_search_edit");