Trying to hook up a second video card..need help

[Death-17]

I'm trying to install a second, older PCI card, to use for a third monitor. When I boot my com with the old card in it , it only uses the old card for display. In Device Manager, under Display Adaptors, it says both cards are working properly and drivers for both are installed. In BIOS, under Primary Video Controller, it lists the following options:

GFXO-GPP-IGFX-PCI

GPP-GFXO-IGFX-PCI

PCI-GFXO-GPP-IGFX

IGFX-GFXO-GPP-PCI

The PCI-GFXO-GPP-IGFX is the one that is high lighted at boot up. The older PCI card is a GForce MX440. What am I doing wrong? I have not installed the SW (SoftTH108b) for BS to see the second card, yet. Wanted to make sure I get the cards straight first.