Problem with PDO exceptions

Hello,

I have MySQL 5.1 and PHP 5.2. For some reason PDO is not throwing 
exceptions when I give it a broken SQL query. For example:

try {
	$stmt = $db->prepare("SELECT * FROM foobar WHERE 1");
} catch(PDOException $e) {
	error($e->getMessage());
}

In this example there is no table called 'foobar', so this should give 
an error. Yet, it doesn't.


Any ideas why that would happen? Possible causes I can think of:
1) PDO decide to "emulate" prepared statements.
2) PDO has some sort of "errors off" setting.
3) My try-catch statement is wrong.


I doubt it's (1) because I have MySQL 5.1 and PDO is only supposed to 
emulate prepared statements for MySQL versions prior to 4.1. And phpinfo 
says that I'm running pdo_mysql version 5.1.30.

Btw, $db->exec() and $db->query() also fail to produce an error when I 
give them a broken query. That's another reason why I think that the 
problem is elsewhere.

Any ideas?

Thank you very much for your help.

Best,
Daniel.