I have a DELL XPS Gen 4 system, 3.80 Ghz, 1024 RAM, Windows Home Ed. It runs FS9 incredibly well and came with an ATI RAdeon X850 XT PE card. DELL told me I cannot run this PC with two video cards simultaneously, that one card must be disabled. But the folks at the DELL forum said I can run two video cards simultaneously, so I bought a Radeon 9250 PCI 256MB card and it arrived today. I duly installed it and it worked, but it bumped off the Radeon 850 XT from the system somehow or other.I posted at DELL an hour ago but have copied the post and am pasting it here in case anybody can assist with ideas. Here goes:" Well, the instal went easy but the results were not what I expected. I loaded the new Radeon 9250 PCI 256MB card into the XPS Gen 4 two slots down from the DELL factory installed Radeon X850 XT PE card. Physically, it was a snap to load, (and I didn't load the 9250 drivers from the accompanying CD since I expected the card would work with drivers from the fitted 850 card) but when I booted up, I got taken to the Windows XP desktop and the Radeon 9250 had totally displaced the default 850XT card. The 850 XT card had been disabled automatically in the process of installing the 9250 card, and somewhere inside the Device Manager sub menu it said that the 850 card could not be loaded because of "Error 10." I don't know what Error 10 is.I spent 20 minutes fiddling with the Advanced tabs for the Display properties but the Radeon 9250 card appeared in positions 1 and 2 in that drop down menu and the 850 card totally vanished from that menu. Inside Device Manager, the icons for the 850 card remained but the icons for the primary and secondary monitors of the 850 card had been struck through with black and yellow exclamation points inserted I guess by Windows XP.The Radeon 9250 also somehow mixed up the primary and secondary monitors, making primary monitor 2 and secondary monitor 1. It was very confusing and a bit unsettling.When I removed the 9250 card, the 850 card remained disabled and all I got was a "default" video card display in the XPS. "Error 10" remained listed as a problem on the Device Manager for the 850 card as well. So I reinstalled the latest DELL drivers for the 850XT card and all reverted to normal following a system reboot after doing that.Anybody know what went wrong or was this a normal series of errors?Appreciate any assistance/suggestions, thanks!"Thanks for any posts on this matter!JS

I have been thinking of buying the same rig, but I think where they get you is on that 2 card setup. I think it has to be the matched set of nvidia 7000 series with the new SLI setup. I could be wrong but that might be the case. Please let me know what they say?Good LuckBrian

So far, no further word from DELL but they did tell me matter of factly that they did not believe a two card setup would work on my specific config and that I had to actively disable one of the two cards if I had two of them seated. So, prolly won't progress beyond this. But if something amazing happens, I'll certainly post.JS