Hi, I just got a new HP 2159m monitor and am using it as an external to my Dell Inspiron E1505 laptop (containing the x1400 card). However, instead of the monitor's max res of 1920x1080, I find that can only get it to display at a max of 1600x1200. Is the card not able to handle any higher resolution or is there something I'm not doing right? Any help would be appreciated.