could need some help with memory leaks

Hello, I rewrote imap_mail_compose() and (almost) everything works fine, but I can't get rid of some memory leaks. In order to compose nested mutlipart messages I created a hash_table [Mon Mar 19 23:44:36 2007] Script: '/root/compose_multipart.php' /usr/local/src/php-5.2.1/Zend/zend_execute.c(1062) : Freeing 0x40835DA4 (32 bytes), script=/root/compose_multipart.php /usr/local/src/php-5.2.1/Zend/zend_alloc.c(1917) : Actual location (location was relayed) [Mon Mar 19 23:44:36 2007] Script: '/root/compose_multipart.php' /usr/local/src/php-5.2.1/Zend/zend_execute.c(1006) : Freeing 0x40835DF4 (35 bytes), script=/root/compose_multipart.php /usr/local/src/php-5.2.1/Zend/zend_hash.c(388) : Actual location (location was relayed) Last leak repeated 1 time [Mon Mar 19 23:44:36 2007] Script: '/root/compose_multipart.php' /usr/local/src/php-5.2.1/ext/imap/php_imap.c(3340) : Freeing 0x40836E4C (44 bytes), script=/root/compose_multipart.php /usr/local/src/php-5.2.1/Zend/zend_API.c(819) : Actual location (location was relayed) Last leak repeated 1 time === Total 5 memory leaks detected === That's what I found out so far: When the function that is called in the script (/root/compose_multipart.php) is accessed, the address 0x40835DA4 has the value 0x40835DF4 at the very beginning. The address 0x40835DF4 has 0x00000000. Can anybody help me to understand the output? Regards, Oliver