redirect condition - php snippet always "TRUE"

In testing Login destination I have run into some problems with the condition settings.
Running fresh load of Drupal5 with Bio.module and Login_destination.
I am trying to use the php snippet condition settings.

I have entered this code

global $user;
$result = db_query('select * from {node} where uid = %d and type = "bio"', $user->uid);
return (db_num_rows($result) == 0);

but it returns true and redirects no matter how many bio records exist (0,1,2)

Any ideas?