VXD Error

What causes a VXD Error on installing WINdows any version but NT?
I have replaced the Hard Drive,and the CD ROM drive, the LS 120(I hate this thing) is going to be replaced, I have tired different copies of Windows 98,(three different CD’s) and still get the error. IS this the chip,
We are running an AMD K6-2, 600mghtz,Gigabyte motherboard, 96MB RAM, and western Digital HD(30GB) and a secondary HD(Maxtor, 27 gig)

Thanks,

Anne Johnson