|"my understanding is, it could be the Video Display Driver or what?"|
Your understanding is not very good, a driver is software, with nothing working it coudn't be fixed even if it there was a driver problem.
Best thing to do is start from the beginning.
Remove the motherboard and lay it on the bench on a nonconductive surface, plug in video card one stick of ram, leave everything else disconnected, connect the power, momenterarly bridge the start pins with a small screwdiver to power on and see if it fires up.
If it posts ok, turn off and plug in the hard drive and remaing ram if any, see if it recognises the drive. If not disconnect it (turn off power) and try the dvd and floppy.
Post back results detailng what you have done, what works and what doesn't, motherboard make and model number