I just had a system crash due to a really bad virus and so I re-installed Windows XP Professional on a Dell Optiplex 330. It has a dual core processor and I am running 4GB of DDR2 ram. I have a video card installed (Multimedia 3D Graphics Accelerate model # GF9400GT) but the installation disc doesn't want to install. I happened upon my problem by accident while installing the marine aquarium screensaver and obviously it won't work. I keep getting a message saying "Could not find any compatible Direct 3D devices" I have gone to the Dell Web site and downloaded all applicable drivers and installed the latest direct x version that I could find but there is still a problem. Before my Windows crash I had no problem with this screensaver or my video card. I also sometimes get a message saying that file E:\i386 is needed but I don't know what this is or how to repair it. I have gone to Windows update and updated all available files. I am unsure on how to proceed so any advice is most welcome.