diff --git a/lib/classes/media/subdef.class.php b/lib/classes/media/subdef.class.php
index b59d304254..5c49df4057 100644
--- a/lib/classes/media/subdef.class.php
+++ b/lib/classes/media/subdef.class.php
@@ -298,7 +298,7 @@ class media_subdef extends media_abstract implements cache_cacheableInterface
         if ( ! file_exists($this->path . $this->file)) {
             $this->path = $registry->get('GV_RootPath') . 'www/skins/icons/';
             $this->file = 'substitution.png';
-            $this->url = '/skins/icons/substitution/' . $this->file;
+            $this->url = $this->path . $this->file;
         }
 
         return $this;
diff --git a/www/include/jquery.p4.preview.js b/www/include/jquery.p4.preview.js
index 3e579a601e..cf88443189 100644
--- a/www/include/jquery.p4.preview.js
+++ b/www/include/jquery.p4.preview.js
@@ -527,4 +527,8 @@ function closePreview(){
 		cancelPreview();
 		$(this).dequeue();
 	});
+        
+        $.each($('#PREVIEWBOX video'), function(i,el){
+            _V_($(el).attr('id')).destroy();
+        });
 }
diff --git a/www/include/jquery.tooltip.js b/www/include/jquery.tooltip.js
index 256366d238..a304d641f0 100644
--- a/www/include/jquery.tooltip.js
+++ b/www/include/jquery.tooltip.js
@@ -585,6 +585,7 @@
     {
       $.tooltip.ajaxRequest.abort();
     }
+    helper.body.empty();
     $.tooltip.current = null;
     function complete() {
       helper.parent.removeClass( tsettings.extraClass ).hide().css("opacity", "");
@@ -609,6 +610,9 @@ function unfix_tooltip()
   $.tooltip.visible = false;
   $.tooltip.current = null;
   $('#tooltip').hide();
+  $.each($('#tooltip video'), function(i,el){
+       _V_($(el).attr('id')).destroy();
+  });
   $('#tooltip .tooltip_closer').hide();
   hideOverlay('_tooltip');
 }