Index: branches/camp/camp-2_5-E/data/Smarty/templates/admin/system/plugin.tpl
===================================================================
--- branches/camp/camp-2_5-E/data/Smarty/templates/admin/system/plugin.tpl	(revision 19513)
+++ branches/camp/camp-2_5-E/data/Smarty/templates/admin/system/plugin.tpl	(revision 19514)
@@ -33,5 +33,7 @@
       </td>
       <td>
+      <!--{if $plugins[data].create_date == null }-->
         <input type="button" name="preference" value="preference" onclick="" />
+        <!--{/if}-->
       </td>