Hardware resource problem

[BoilersT]

I'm having a problem with a I/O conflict in my aunt's computer. It's older AMD system with a VIA chipset; The video card (AGP) and the VIA AGP controller seem to have a conflicting I/O address. I've formatted and reinstalled Wndows, and installed the video, and chipset drivers with just the video card in like the manual said but that didn't work; I've also tried a different card but that had the same result. Any Idea's?

Specs:

AMD K6-2 500Mhz
Aopen AX59-Pro (VIA MVP3 AGPSet)
192mb of Ram (128mb PC133, 64mb PC100)
Radeon 7000 AGP and some SIS card (not sure of model)
12Gb HDD
Windows 2000

[Know Nuttin]

Do you have ACPI enabled?
updated the motherboard bios to the latest?

after a fresh install, do you still have the I/O address conflict prior to installing drivers?

[BoilersT]

ACPI is enabled, and the I/O conflict was there before driver install. I'm going to check aopen's site and see if there's any BIOS update.