Index: mycap.module
===================================================================
--- mycap.module	(revision 1357)
+++ mycap.module	(working copy)
@@ -262,6 +262,9 @@
         '#default_value' => md5(mt_rand()),
       ),
     );
+    
+    //Save this page's URL so that we can uncache it when this form is submitted
+   	$form['orig_url'] = array('#type'=>'hidden','#value'=>$GLOBALS['base_root'] . request_uri());
 
     // Ugly, but necessary.
     if (isset($_POST) && isset($_POST['seed'])) {
@@ -272,12 +275,11 @@
     }
 
     $form['captcha'] += mycap_add_captcha($seed);
+    
     $form['#validate']['mycap_validate_captcha'] = array();
     $form['#pre_render'][] = 'mycap_prerender_captcha';
     $form['#submit']['mycap_unset_captcha'] = array();
 
-    // Prevent caching of this page.
-    $GLOBALS['conf']['cache'] = FALSE;
   }
 }
 
@@ -395,6 +397,12 @@
  * @param array $form_values
  */
 function mycap_validate_captcha($form_id, $form_values) {
+  
+  //clear PAGE cache of submitting form, if cache is turned on. Added by Eli
+  if (isset($_POST) && isset($_POST['orig_url']) && variable_get('cache',0)) {
+  	cache_clear_all($_POST['orig_url'], 'cache_page');
+  }
+  
   $seed = $form_values['seed'];
   // Compare the submitted answer to the generated answer.
   if ($captcha = mycap_get_cached_captcha($seed)) {