Video Card Issue

I have an issue with my video card that came up recently that I'm wondering if you guys can help me with.

I just recently purchased a new ATI Radeon X1950 Pro 521MB AGP Graphics card from new egg. I am using a Nvidia chipset motherboard and my previous graphics card was a Nvidia Geforce FX 5900.

I have never experienced installing a different brand of graphics cards, but I didn't think it would cause this much trouble.

I began uninstalling all my old Nvidia Display drivers, and once done I proceeded to turn off my computer. I installed my new video card, but try as I may, I can't get the computer to recognize the new hardware.

I think at this point I have a few ideas of what may be the problem, but I'm not sure. For one, my BIOS is a few years old. It could be having compatibility issues with my motherboard. Two, and I don't think this is likely, but can you put ATI cards into a Nvidia based board? I think I've read somewhere that this shouldn't be a problem.

Anyway, the bottom line is, I can't get my computer to recognize my new video card. Do any of you have any suggestions as to what I should do?

Here are my specs. I apologize about the huge chunk of text that is going to be posted here:

Computer Info
--------------------------------------------

Computer
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
Internet Explorer 6.0.2900.2180


Motherboard
CPU Type AMD Athlon XP-A, 2079 MHz (6.25 x 333) 2800+
Motherboard Name Asus A7N8X-X (5 PCI, 1 AGP, 3 DIMM, Audio, LAN)
Motherboard Chipset nVIDIA nForce2 400
System Memory 1024 MB (DDR SDRAM)
BIOS Type Award (08/19/03)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display
Video Adapter nVIDIA GeForce FX 5900
3D Accelerator nVIDIA GeForce FX 5900

Multimedia
Audio Adapter nVIDIA MCP2 - Audio Codec Interface

Storage
Floppy Drive Floppy disk drive
Disk Drive HDS722512VLAT20 (120 GB, 7200 RPM, Ultra-ATA/100)
Disk Drive Memorex Mini TravelDrive USB Device
Optical Drive _NEC DVD_RW ND-3520AW
Optical Drive 56X CD-ROM (56x CD-ROM)
Optical Drive Memorex Mini TravelDrive USB Device

BIOS INFO
---------
BIOS Properties
Vendor Phoenix Technologies, LTD
Version ASUS A7N8X-X ACPI BIOS Rev 1006
Release Date 08/19/2003
Size 256 KB
Boot Devices Floppy Disk, Hard Disk, CD-ROM, ATAPI ZIP, LS-120
Capabilities Flash BIOS, Shadow BIOS, Selectable Boot, EDD
Supported Standards DMI, APM, ACPI, PnP
Expansion Capabilities PCI, AGP, USB

Motherboard Properties
Motherboard ID 08/19/2003-nVidia-nForce-A7N8XÄXC-00
Motherboard Name Asus A7N8X-X

Front Side Bus Properties
Bus Type DEC Alpha EV6
Bus Width 64-bit
Real Clock 166 MHz (DDR)
Effective Clock 333 MHz
Bandwidth 2661 MB/s

Chipset Bus Properties
Bus Type HyperTransport v1.0
Bus Width 8-bit

Motherboard Physical Info
CPU Sockets/Slots 1
Expansion Slots 5 PCI, 1 AGP
RAM Slots 3 DIMM
Integrated Devices Audio, LAN
Form Factor ATX
Motherboard Size 240 mm x 300 mm
Motherboard Chipset nForce2-400
Extra Features Q-Fan, CPU Overheating Protection

Motherboard Manufacturer
Company Name ASUSTeK Computer Inc.
Product Information http://www.asus.com/products/mb/mbindex.htm
BIOS Download http://www.asus.com/support/download/download.aspx


If you have any idea on what I could do to fix this, it would be appreciated.

Thanks

Jam it back in, in the dark.

At least for windows the uninstallation of graphics drivers removes only a tiny part of the things that the driver installtion routine does to the system (apart from copying files). Google for some tools to clean your system (especially windows registry) from old gfx driver entries and such. There should be some tools out there.

There's nowhere I can't reach.

Alright, I downloaded a program that deletes all my drivers that I specify. I will try and plug the video card back in and see if that works.

This thing is sticky, and I don't like it. I don't appreciate it.