Is anybody else experiencing this?

[CrazyNutz]

Have you tried the card in question by it's self, i.e. remove your older card from the equation.

Also what is the make/model of the card, I read somewhere about some makers gtx460 that sports dual bios/flash chips.

And also perhaps the bios structure is different, or its using a different 3d clock domain, and FBE is just not presenting it correctly. I have
nibitor 5.8 (support for 460) if you post your orig bios i'll check it out to see if there is anything strange.