PHP page completly blank

Hi, i reinstalled on my computer (Win XP) PHP 5.2.4 (but the same happens with 5.2.6). when i run an index.php page or any other php page which works well before, now i get a blank page result on my browser without any error message. even if only HTML code is inside the PHP page nothing is displayed. it's enough that page as *.php extension to reproduce such issue. when under command line i run php -v i get a lot of error messages, like those 2 as attached files. what can it be ? i've checked those files and they exist. :-( thanks a lot for your help. -- Alain ------------------------------------ Windows XP SP2 PostgreSQL 8.2.4 / MS SQL server 2005 Apache 2.2.4 PHP 5.2.4 C# 2005-2008