Can't install nvidia drivers after XP sp2 upgrade

AGP and XP's SP2

I have an NVIDIA GeForce 5600 installed in the AGP bay of my K7S5A mobo connected to an IBM T55D digitial only monitor. I recently installed XP and just very recently SP2. Prior to that I ran the IBM supplied Matrox MGA 200 Millenium card in Windows 98e an never got an image in post and boot. Finally that card just seemed to die altho I'm not convinced it's actually dead. But I bought the above card with a dongle from DVI to the monitor's VESA P&D interface.
I recently partitioned my drive and installed Fedora 3.0 and my T55D quit working. I could connect an old VGA monitor to the NVIDIA VGA port and get a picture but DVI-D was a no go. I figured if I reinstalled the NVIDA video driver things might change. From then on any attemp to install the card in the AGP slot and I couldn't get through post and boot. I tried the old MGA card and the same thing. An old VGA card in PCI worked. Finally I updated the AGP driver for the SIS chipset and that resolved the problem of getting the NVIDIA card recognized and a display on the T55D once the OS loaded. I still can't get an image during post and boot which makes me wonder how I'm going to manage choosing between which OS I want to load. Other forums have suggested updating the K7S5A BIOS but with the caveat that that's a tricky bit of business. Any suggestions?

Guess What

Had the same problem only to find out that it was an IRQ problem. Xp assigns IRQs and will not let you change them. My new card required a setting of 11 which was already in use and could not be changed thanks to XP Pro. Check your settings. This may answer your question. Marv. :hotbounce

gleno

This is to help anybody whos having problems with nvidia drivers after upgrading to xp, for some reason xp gets rid of your agp driver so it loads the
generic one, so go to control panel system/ hardware/device manager then scroll down to system devices, then to "via cpu to agp2.0/agp3.0 controller" click this to open it then go to driver, "update driver" , once this is done you can then install the latest nvidea drivers and thats it good look!