[PHP-DB] Weird Problem In mysql_connect();

[Dave Watkinson]

Hey all
 
I can connect with $conn =
mysql_connect("IP_Address","username","password");
 
but I can't connect with
    $host = "IP_Address";
    $user = "username";
    $pass = "password";
 
$conn = mysql_connect($host,$user,$pass);
 
Any ideas? All I get is "Can't connect to MySQL Server on 'localhost',
which is kinda weird cos I'm actually specifying a (different) IP
address in the host argument.
 
I know it wasn't broken, but I decided to try and fix it anyways!!!
 
TIA!
 
 
Dave