YOU ARE CORRECT

THE PROBLEM IS SOLVED

Nothing has changed in imp/lib/Search between RC1 and RC2 so this is 
not an imp issue.  The search problem you are indicating was an error 
in Horde's IMAP_Search and can be solved by upgrading to Horde 3.0.5.

  /* Prepare the search query. */

         if (!empty($ob)) {

             $old_query = unserialize($imp['search']['query']);

             $query = &new IMAP_Search_Query();

             $query->imapAnd(array($ob, $old_query));

         } else {

             $query = unserialize($imp['search']['query']);

         }

The Problem Is As Under :



In Search Menu If You Select Match Any Query  The Search Works

If You Select Match  All  Quiries then the Search returns empty Set



The problem is coming from lib/Search.php



I have copied the lib/Search.php of  4.0.4-RC1 In 4.0.4-RC2 and now 
Match All Quiries work



I feel the problem is in Line No 23 To 29 Of  lib/Search.php in 
version  4.0.4-RC2



I have multiple imp versions running Simulteneously and I had picked 
wrong line in Log . I regret



But the reporting is correct

Duplicate of Bug 1367. (and line 585 is a comment in RC2 so you are 
not running RC2 as you indicate).

The message from php log is as under :

PHP Notice:  Undefined offset:  0 in 
/var/www/html/horde/imp/lib/IMP.php on line 585

For any search Horde gives following message

No messages matched your search.

Presently I am using 4.0.4-RC-1 in which search works OK.

Do you want us to guess, or will you tell us the exact error message?

Search Does not Return Any row  in php-5.0.5 Version. PHP gives notice 
of incorrect index