Answers would include Viltim's protection circuit as part of his VGA-Arcade amplifier schematics, or using a J-PAC, or easiest of all just flashing the video card's BIOS with an Atom15 mod. It's by Calamity as well. I've got it running first time on all 4 cards I've tried (4350, 4890, 6870, 6950) and it's been updated since. AMD/ATI cards only, however.
That takes care of pre-windows resolution, then you'd use crt_emudriver for windows.