httpd eats processor [cont.]

hi there again

    for those, who don't remember the problem : httpd eats all processor
time.

i have php 4.0.0 with apache 1.3.12
apache error_log has following lines:

---------------------------------------
zend_execute_API.c(225) : Block 0xBFFFE934 status:
Beginning:   Overrun (magic=0xBFFFE960, expected=0x7312F8DC)
      End: Unknown
---------------------------------------
<br>
<b>Fatal error</b>:  ht=08288efc is destroying in zend_hash.c:519 in
<b>Unknown</b> on line <b>0</b><br>
<br>
<b>Fatal error</b>:  ht=0819bc64 is already destroyed in zend_hash.c:519
in <b>Unknown</b> on line <b>0</b><br>
<br>
<b>Fatal error</b>:  ht=0819bc64 is already destroyed in zend_hash.c:519
in <b>Unknown</b> on line <b>0</b><br>
<br>

... and so on.
httpd generates endless errors raports (40Mb was reached in 1 minute :))

and all this happens AFTER the page is generated !!

does anyone have any idea ????
maybe this is something with memory cleanup ??

    dariusz malinowski