Hi, I am currently running 2 computers both with dual monitors set up already. With that said...on the computer that is a P5 2.52 gig with 512k ram Dell running on Windows XP I currently have an ATI Radeon Pro 9700 Card 128 meg video card (and is in the AGP slot) that has dual outputs for a DVI and Analog monitor. (Once gain both of these slots are currently being used on this computer). Here is the tech problem I am currently having and need help with...I went to COMPUSA and bought an ATI Radeon 7500 video card that also has dual outputs and this one of course is PCI (as the AGP is being used already). This would allow me to have four screens on under one computer. I installed the card made sure it was nice and snug...turned on the computer and the computer didnt recognize that there was even a card in the PCI slot at all. Meanwhile both monitors are still working that are connecting from before and running off of the AGP card. So I do a few control tests...go to the boot menu and then install the software that came with the card..although the drivers are exactly the same as before because I made sure to get cards from the same manufacturer. Anyhow I am out of troubleshooting ideas and would like to know from those who have conquered this problem what is next to do? Is this a set up that can even be handled by Windows...? Thanks.