Microsoft only installs a small portion of the drivers you may need on any machine.
Find the video drivers for your video card for the OS in question and install them. Identifying your video card after such a format is easy. Just look at the video card and enter identying marks into http://www.google.com
You may also need drivers for motherboard, audio and modems.
Bob
I have recently reformatted my hard drive and re-installed WIN 98 (due to a virus). Since the reload, I can not adjust my display properties. Currently the display / font is so large, I can't even see the whole windows backgroud on my display. If I attempt to adjust the display properties, there is nothing I can change (either no options or items are greyed out). I am thinking that some video drivers did not get loaded when re-loading WIN 98, but I don't know if this is correct. Any ideas?

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