MYSQL_SOCKET PDO How do I change it?

[Kudose]

'ello all.

I'm running Debian etch and have PHP5, PDO, MySQL5 and Apache2 mostly all running and working happily together.

For the life of me I can't get PDO MySQL to work.

I keep getting the error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

My socket is /tmp/mysql.sock

In phpinfo() my MYSQL_SOCKET is /var/run/mysqld/mysqld.sock as well as MYSQLI_SOCKET

How can I change these?

mysql.default_socket and mysqli.default_socket both correctly show /tmp/mysql.sock

TIA!

edit

I can connect and selected databases with mysql_connect ... PDO is the culprit here.