>Okay, now that I've got the wrong set of video drivers in my NT machine, where/how do I reset it? There doesn't seem to be anything in Appearance/Settings, and there's no "Add New Hardware"..."Devices" doesn't seem to have what I'm seeking...

Boot to the VGA standard display option undr NT, go to Control Panel/Display, Settings tab, Display Type button. You should have a clue (and the video card driver distribution diskettes or CDs close at hand!) when you get to this point.