Postgresql problems

Hi I reported a few days ago problems with connecting with postgres. I thought they ware caused by unstable postgres version, but now I've instaled postgres 7.0.2 and the latest cvs version of php (200008242345). Unfortunetlly the same error occur: Warning: Supplied argument is not a valid PostgreSQL link resource in /www/virtual/site/common/pg_interface.php on line 31 So I've downgraded php to version 4.0.0 and .... no problems with connecting. I've learned that there should by at least one line says what has gone wrong, but there is none :-( It seams that pg-link identifier stays (int)0 I've also tried a few other snapshots of php, but nothing has changed :-( Is it a real bug, or am I doing something wrong? Przem