Monitor / Video Card Resolution Problems

This is a very strange problem, so please bear with me. I have a three-year-old Dell Dimension 9200 running Windows 7. The video card is a GeForce 7900 GS with two DVI-Out ports and the monitor is a Dell E228WFP 22" widescreen monitor with a native resolution of 1680 x 1050. It has one VGA-In port and one DVI-In port.

Recently, for some unknown reason, the monitor's DVI connector has ceased to function, as has, apparently, one of the DVI ports on the video card. Now the only way I can get video is to connect a VGA cable from the monitor to a VGA to DVI adapter connected to the card’s other DVI port.

I'm not exactly sure if this kludgy setup is the reason, but now I do not have the option to select my monitor's native resolution. I tried re-installing the video card driver but I still could not select the correct setting. There is an option in the video card control panel to add other resolutions. I added the one I wanted but when I selected it, everything on the screen looked distorted. Windows is showing the monitor as, I believe, a “Generic non-PnP Monitor”. I tried getting it to use the specific Dell profile, but the system said that it was already using the best choice, which I know is bogus. At one point, I even tried reinstalling Windows 7 but that didn’t make any difference either.

As far as I can see, there are only three possible culprits: the video card, the DVI cable or the monitor itself. I have already eliminated the cable as the problem because I tried a new DVI cable with no success. I have even gone so far as to order a new monitor from Dell but it will not arrive for a few more days, so I’m not sure yet if that will work. I’m just hoping I won’t have to replace the video card too.
I would very much appreciate any ideas or advice any of you might have.

Thanks in advance.
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More about monitor video card resolution problems
  1. if Windows is showing the monitor as generic, then the monitors drivers arent properly installed

    and the funny thing is, your monitor isnt listed in the windows7 drivers list, there are drivers for vista and xp thou...
    you could try the vista drivers, but dunno if they'll work...
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