Index: plugins/views_plugin_display.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/views/plugins/views_plugin_display.inc,v
retrieving revision 1.20.2.47
diff -u -r1.20.2.47 views_plugin_display.inc
--- plugins/views_plugin_display.inc	18 Nov 2010 21:22:55 -0000	1.20.2.47
+++ plugins/views_plugin_display.inc	25 Nov 2010 20:52:07 -0000
@@ -248,7 +248,17 @@
    * Can this display accept attachments?
    */
   function accept_attachments() {
-    return !empty($this->definition['accept attachments']);
+    if (empty($this->definition['accept attachments'])) {
+      return FALSE;
+    }
+    if (!empty($this->view->argument)) {
+      foreach ($this->view->argument as $argument_id => $argument) {
+        if ($argument->needs_style_plugin() && empty($argument->argument_validated)) {
+          return FALSE;
+        }
+      }
+    }
+    return TRUE;
   }
 
   /**