Database Error 4.08 ERROR 1064
 

Database error in vBulletin 4.0.8:

Invalid SQL:

SELECT p.*
FROM post AS p
WHERE p.postid IN (.,.,.,.,.,.,.,.,.,.);

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.,.,.,.,.,.,.,.,.)' at line 3
Error Number : 1064
Request Date : Tuesday, November 30th 2010 @ 01:01:23 PM
Error Date : Tuesday, November 30th 2010 @ 01:01:23 PM
Script : http://forumname.com/search.php?searchid=1380
Referrer : http://forumname.com/search.php
Classname : vB_Database
MySQL Version : 5.1.53

This is happen when i want to do search.

Thanks for yout help Guys

Try disabling your modifications/plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit includes/config.php and add this line right under <?php