Nvidia Quadro 5000 w / one digital monitor connected to DVI port and one connected to displayport - DVI adapter. After several months the monitor in the displayport stopped displaying. Tried other monitors, different cables, latest driver, borrowed NVIDIA Quadro 5000 card. No help.

SOURCE: NVIDIA GeForce 6600

Did you try installing and updating the driver of the graphics card dedicated to the operating system "VISTA" ? Sometimes there is some difference between vista's driver and XP's driver.

SOURCE: nvidia fx 5200

The only time that this can happen is if the driver is not installed correctly, as on install you are normally asked if you want to activate support for dual monitors, so if you havent already, uninstall the card driver, restart and install driver again from the cd or from the NVIDIA website. http://www.nvidia.com/object/winxp_2k_93.71.html If you have already tried this my apologies.

SOURCE: Primary display issue

Hello,

Try going to Windows Safe Mode. You do this by pressing the F8 key repeatedly exactly after you hear your computer beep when it is rebooting. This should bring you to a screen that will have 3 Safe Modes listed, choose just plain Safe Mode by using your arrow keys to highlight Safe Mode and press enter. Once in Safe Mode, a box will come up asking you if you intended to enter Safe Mode, click Yes. You should now see your desktop, however it will look larger, and with less colors. This is normal.

If this mode did not allow you to get into windows, then reboot, press F8 like before and select Enable VGA Mode instead.

Now that you hopefully have a desktop, try this link which will take you to a video that will walk you through the process of setting up your DualView monitors. Also, note that there are some check boxes that allow you to select which monitor you want to be the primary.

I realize this video is specific Windows 2000, but the process is the same for Windows XP.

Hope this helps and Good luck!

SOURCE: Nvidia GeForce 7200 GS PCIE - Multi-Display does not work

This card does not allow you to Multi-Display with the VGA port and the S-video port. If you put a DVI to VGA port adaptor (not supplied) on the DVI port, you can Mulit-Display two VGA monitors and (presumably) a VGA (from the DVI port) and S-video monitor.

This is not explained anywhere and the card does not come with a DVI to VGA port adaptor, so I wa only able to work this out after I bought the DVI to VGA port adaptor.

SOURCE: No color Red, Dell XPS 400, NVIDIA GeForce 7300 LE video card

Mike,

I would recommend for you to try different monitor, so that you can isolate the problem.

If same problem occur, try to plug in your video card into another PCI slot in your computer. Cleaning the gold fingers of the video card with a clean cotton cloth might help.

Use a blower to remove some dust on the PCI slot.

Or try inserting the video card in another computer. If you get the same problem on another computer, you need to replace the card.

Good luck!