HP Pavilion a810n (PP164AA) PC Desktop "samsung monitor stretch image" Questions

...Samsung 23" monitor. I need to upgrade to a video card with 2048X1152 resolution. Which card do I buy? Without that resolution I get a stretched image. The specs for your system's motherboard say it ...

Samsung monitor. The resolution settings don't allow me to set to 1680x1050 which is the proper setting for the wide screen. The result is a stretched out image. I've been told to buy a new video card

...monitor itself from the Samsung website. All of the drivers are correct and working, but the image is still stretched out, and it will not show 1920x1080 in the list of resolutions in the settings. ...