Win 7 isn't detecting my nVidia GeForce 9800

Hello!
I am quite desperated about this case. I've been searching online for 2 days and haven't found anything helpful yet.
I used to use Windows XP and decided to change for Windows 7. Before I make this change, Windows XP was detecting my Graphic card without problems.
Since I installed the new Windows, I am having some problems.
Every driver, but my Graphic Card driver, was detected by Windows. It shows that I have a Standard VGA Graphic Adapter.
I already tried to install the last nVidia driver for Windows 64-bit, but it doesn't work. It says that nVidia setup couldn't find any driver for my actual hardware or something like that.
Is there anybody who can help me? I would be very grateful.

Thanks in advance!

Hi.

Yeah, sure.

First, which motherboard do you have?
Are there any exclamation points in the device manager, under system devices?
And are you sure you installed Windows 7 64-bit?

Did you do and upgrade or a "clean" installed?

Useless files can be leftover from an upgrade and can cause conflicts, possible like you;re seeing right now.

I suspect he has a problem device in system devices. Let's wait to see what he says.

I had trouble with frame rates in flight simulator in 7, so I wanted to change the video driver from the one that MS installed during the installation of 7. The first time I grabbed an nvidia driver and installed it, it went just fine, but frame rates still sucked. Later on, I searched for another version of the nvidia driver and downloaded one. Then, trying to be clever, I uninstalled the current nvidia driver and windows installed the plain vanilla VGA driver. With the VGA driver running, Nvidia setup was unable to detect that I have an nvidia card installed. I quickly deduced that was the problem, and let windows reinstall the WDM driver, so that the Nvidia setup would detect the card. It did.

That's great, but I still suspect he has a problem device in the device manager. Especially since he was an XP user and that means an old board most likely.

Processor: QuadCore AMD Phenom II X4 Black Edition 955, 3.2ghz
Motherboard: AMD 790X, AMDK10

I took a Print Screen of my config.

Hey. Can you please post a screenshot of your device manager, with system devices maximized and also, display adapters maximized?

And also, install the latest chipset drivers from here >>> http://www.gigabyte.lv/products/mb/d...t-ud4p_10.html

It's also good to install anything newer than what you have already, from this page too.

after installing the latest chipset driver of my motherboard.