I decided to poke around in some GTX465 BIOSes from our VGA BIOS collection here, but every one I loaded came up with everything blanked out. I tried a GTX460 BIOS after this and got the same results. I remember reading something about a donator-only version of NiBiTor and it had something to do with the "new" Nvidia cards at the time (Fermi). Is there still no public version that will read the Fermi BIOSes? As far as I know, 5.8 is the latest version (and it's what I've been using).