MySQL Error

[The Hobo]

I'm getting the error message "Warning: Supplied argument is not a valid MySQL result resource in /home/vbshelf/public_html/try.php on line 6" with the following code:

<?php
    $db = mysql_connect("localhost", "user", "pass");
    mysql_select_db("database",$db);
    $result = mysql_query("SELECT * FROM vb",$db); //problem line
    
    if ($myrow = mysql_fetch_array($result)) {
        echo "There are records!";
    } else {
        echo "Sorry, no records were found!";    
    }
?>

What's going wrong?