1. why did you think it was Nvidia, unless you have that pci card.
2.If so, you got the wrong chip number for drivers. Or-
3. W98SE does not have native drivers for some Intel co-processors. You need to check the mobo chipset. It does have generic ones that will partially work but not enough to run AGP maybe.
Navigate www.intel.com for chipset info and a utility that will identify what you have.
4. If you have VIA chipsets, search for VIA-4-in-one driver package.
5. If the video is on the mobo, go to mfg website for PC info and support, including drivers.
I reformatted my computer and reinstalled Windows 98SE.
The display settings only allow either 2 or 16 colours.
I thought that downloading a driver (nvidia geforce 256) would solve the problem but this error message appeared.
Setup was unable to locate any nvidia graphics chips on this system.
I ran dxdiag and under the display tag there is nothing opposite Chip type or DAC type.
I would be most grateful for any help.