I have a Dimension 4600 with a Dell-installed 128MB DDR NVIDIA GeForce FX5200 graphics card with TV-out and DVI. I am currently using a Dell analog E172FP 17inch display with a VGA cable. I have not had a bit of trouble with my Dell system over the past 2 1/2 years. I would like to purchase a 19inch digital widescreen monitor with native resolution of 1440x900 to use with my existing video card. My current monitor has a maximum resolution of 1280x1040. Will I be able to utilize the FX5200 card and be able to get the 1440x900 native resolution of the new monitor or must I upgrade the video card? I realize that my video card is dated and low-end, but I don't want to replace it. I am not a gamer and plan to use the computer for web-surfing and possibly DVD watching. Any thoughts would be greatly appreciated. Dell Tech Support sent two automated responses which did not deal at all with my question.

Dimension 4600, Pentium 4 (2.80 GHz, 533 FSB), 256MB SDRAM, 80 GB HD, Win XP Home Edition SP2.