OK guys, I've got a Dell IN2020M monitor. All is fine and dandy except I'm stuck at 1440x900 and I can't set it to the recommended resolution which is 1600x900. There's 1600x1200 on the Windows 7 display slider but it just looks plain weird.

Does this got to do with me not using a 'true' DVI cable? Currently I'm using VGA(monitor) > DVI(card) connector since my ATI 4830 doesn't come with a native VGA connector.