Also having the same exact problems.
Windows 7 x64, Nvidia 9800 GX2.
If I use older drivers "197.45", I crash after the intro "FalloutNV.exe"
If I update to the newest drivers "260.89".... I get Gamebryo render failure
I camped outside 5 hours for this? I should of waited for GOTY edition... collectors isnt worth the effort and money. Last Bethesda product I ever buy.
I have tried every possible thing except booting to windows xp. I deleted my xp partition awhile ago, and now looks like it may be my only hope.... This is just wrong.
I'm still downloading the game to see if the issue is with the physical disk. Since I'm getting the exact same error on 2 different setups, I'm ruling out the setups. I won't re-install windows or dual boot when I don't need to. I'm going on a hunch that those that are able to play on their windows 7 64 builds are from ordering via Steam. I don't see too many here who bought the physical copy like I did. I'll know more at lunch when I can install the game again.
FYI, my desktop is a Q9650, ati sapphire 5850, 4GB ram. The laptop is strictly my development setup and this is the first time I've installed games on it, so it's a dual-core with an nVidia 8600m video card. Once I have this figured out, I'm removing it from the laptop. I just needed to confirm that it wasn't my desktop. Weird tho is I never had any issues with FO3 even with using 30 (yes 30) mods. The difference there is I bought the game prior to Steam and when it was using Securom.