Hello I 2 weeks ago I upgraded to php 5.3.1 and it seems something is wrong when loading PDO.so If i run phpinfo(), it stops printing on the screen just before pdo. here is my phpinfo: phpinfo() from Pcel support (irc) someone told me to install pdo with '--with-pdo-mysql=mysqlnd' (as in the built in pdo driver..) (easyapache does a install with '--with-pdo-mysql=shared'; how can i change this to mysqlnd?) I just did a reinstall for php and have the same problem. If i remove the line extension=pdo.so from php.ini, phpinfo() shows completely but i get a error_log with a line telling me that pdo is not loaded and cannot load pdo_mysql, but i need pdo_mysql What do you recommend ? //// later //// I found a stupid trick: after installing without PDO ('--disable-pdo') i retried to install PECL module PDO and PDO_MYSQL and at end a error was something like: PDO_MYSQL.so (or PDO.so) is not in the folder bla bla bla and then i duplicated those 2 files with CAPS (originally in folder they were with lowercase) and now it starts, works, shows entire phpinfo(). //// later than last later time. //// at my third install in this night it finally works. not all but just what is "required". i still can't make pdo_sqlite work. if i enable this extension, same problem, phpinfo() ends before reaching the end (just before PDO) same link as above for phpinfo() strange it is that the drivers for sqlite2 are working, for sqlite not. anyway.. i think this solves my problem. if any ideas about how to do this better, please reply also, please, take a look in my php configuration and tell me if something is wrong, or ambiguous, or missing thanks.