--- talk.module.orig	2010-03-29 12:13:53.000000000 +0400
+++ talk.module	2010-03-29 12:16:06.000000000 +0400
@@ -115,7 +115,7 @@
 function talk_nodeapi(&$node, $op) {
   switch ($op) {
     case 'load':
-      if (talk_activated($node->type) && arg(0) == 'node' && !arg(2)) {
+      if (talk_activated($node->type) && arg(0) == 'node' && (!arg(2) || (arg(2) == 'revisions' && is_numeric(arg(3)) && arg(4) == 'view')) ) {
         // Overwrite setting of comment module and set comments for this node to disabled.
         // This prevents the comments of being displayed.
         $output['comment_original_value'] = $node->comment;