Does anyone have or can point me to a source for a flasher utility that will flash a MAC Voodoo5500 PCI card back to MAC after being flashed to PC?  I have the necessar bios, 3dfx MacTools, but MacTools doesn't recognize the card with the PC bios in it so it won't load to allow me to "Upgrade" the bios using the method at http://voodoo.etracer.net