Installing the second Video card
 

I am running RH 8.0 with one PCI(ATI Installed with no poblems) and a AGP NVidia GeForce 2 which I cannot seem to get to install.

In the BIOS if I change to AGP card Linux boots in to X system fine however when i go to the Display tab the screen blanks out and will not come back on.

I am try to get the 2 cards to go to seperate 21" monitors for desktop sharing as done in Winbloze. I have seen some of the example configs but find these a bit confusing.

Is there a way to get this installed graphically?

what is "the display tab"?? you've not said what distribution your using, let alone what program this is in... you must learn to provide useful information in posts.
read through the Xinerama howto fro info on settign up a dual head system. personally i'd say just get each card runing indiviudally and them namually combine the two XF86Config files you are given