--- fieldgroup.module.orig	2007-03-27 05:27:42.000000000 -0700
+++ fieldgroup.module	2007-10-12 10:38:47.000000000 -0700
@@ -392,15 +392,18 @@ function fieldgroup_nodeapi(&$node, $op,
         $node->content[$group_name] = $element;
 
         $visible = FALSE;
-        foreach ($group['fields'] as $field_name => $field) {
-          if (isset($node->content[$field_name])) {
-            $node->content[$group_name][$field_name] = $node->content[$field_name];
-            if ($node->content[$field_name]['#access'] && !empty($node->content[$field_name]['#value'])) {
-              $visible = TRUE;
-            }
-            unset($node->content[$field_name]);
-          }
-        }
+		// entered a test to see if $group['fields'] was an array, to avoid getting an error when other modules pass poor arguements
+		if (is_array($group['fields'])){
+			foreach ($group['fields'] as $field_name => $field) {
+			  if (isset($node->content[$field_name])) {
+				$node->content[$group_name][$field_name] = $node->content[$field_name];
+				if ($node->content[$field_name]['#access'] && !empty($node->content[$field_name]['#value'])) {
+				  $visible = TRUE;
+				}
+				unset($node->content[$field_name]);
+			  }
+			}
+		}
         if (!$visible) {
           // Hide the group, because the fields are empty or not accessible.
           unset($node->content[$group_name]);