Redaht 7.3
Apache 1.3.29 (src)
php 4.3.1 (src)

What is that?

cat /var/log/httpd/error.log
PHP Warning: Unknown(): imap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): ldap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP Warning: Unknown(): imap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): ldap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): pgsql: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): imap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): ldap: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: Unknown(): pgsql: Unable to initialize module
Module compiled with module API=20010901, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
[Mon Mar 1 05:45:30 2004] [notice] Apache/1.3.29 (Unix) PHP/4.3.1 configured -- resuming normal operations

I take it you recently upgraded php? If so then try recompiling your modules.

Got it.
I didnt clean up like i should have done.
php.ini was still the old version which was wrong configured to the new php