Dual Monitor Trouble

I am using a Dell Dimesion 2400 with onboard video.

Intel(R) 82845G/GL/GE/PE/GV Graphics Controller

I just installed a second NVIDIA GeForce FX 5200 to use as a secondary display adapter as well as installing a second monitor.

All the cables are connected, the power is on, the drivers are updated and uploaded but I can't get the second monitor to work.

I'm trying to run two monitors off this one machine and can't seem to figure out why it's not working.

In display/settings the second monitor does not appear.

I'm not sure what I am doing incorrectly.

Any help is appreciated!
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I have never heard of anyone being able to get onboard video to work with a second video card.  The combinations that are known to work are dual port video cards, an AGP card with a PCI card, and multiple PCI cards.  Anything with an onboard video and a second video card seems doomed to fail.

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It may work with some machines see this article.
The problem of different video drivers working simultaneously makes things very complicated.  Intel and nVidia are both going to try to be the output device.
Dan_KimAuthor Commented:
Ok, thanks for all the help guys.  It works now.  I wish I could post something thoughtful, insightful, and ultimately helpful for the next person to have this problem but I can't.

I moved the video card into a new PCI slot.  I attached the PCI video card to my primary monitor.  I rebooted four times.

Now suddenly it works.

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